Home / 20,477.04-28,243.20-14,105.68

Finding the Fourth Proportional to 20,477.04, 28,243.20 and 14,105.68

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Solution

The fourth proportional to 20,477.04, 28,243.20 and 14,105.68 is: 19,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.04 : 28,243.20 = 14,105.68 : x
  2. Step 2: Convert to fraction form
    20,477.04/28,243.20 = 14,105.68/x
  3. Step 3: Cross multiply
    20,477.04x = 28,243.20 × 14,105.68
  4. Step 4: Simplify right side
    20,477.04x = 398,389,541.38
  5. Step 5: Solve for x
    x = 398,389,541.38/20,477.04
  6. Step 6: Final answer
    x = 19,455.43

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Half scale
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Double scale
Find fourth proportional to 20,478.04, 28,244.58 and 14,106.68
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.