Home / 20,130.30-30,195.45-14,946.30

Finding the Fourth Proportional to 20,130.30, 30,195.45 and 14,946.30

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Solution

The fourth proportional to 20,130.30, 30,195.45 and 14,946.30 is: 22,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.30 : 30,195.45 = 14,946.30 : x
  2. Step 2: Convert to fraction form
    20,130.30/30,195.45 = 14,946.30/x
  3. Step 3: Cross multiply
    20,130.30x = 30,195.45 × 14,946.30
  4. Step 4: Simplify right side
    20,130.30x = 451,310,254.34
  5. Step 5: Solve for x
    x = 451,310,254.34/20,130.30
  6. Step 6: Final answer
    x = 22,419.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.