Home / 20,798.48-28,683.22-13,732.04

Finding the Fourth Proportional to 20,798.48, 28,683.22 and 13,732.04

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Solution

The fourth proportional to 20,798.48, 28,683.22 and 13,732.04 is: 18,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798.48 : 28,683.22 = 13,732.04 : x
  2. Step 2: Convert to fraction form
    20,798.48/28,683.22 = 13,732.04/x
  3. Step 3: Cross multiply
    20,798.48x = 28,683.22 × 13,732.04
  4. Step 4: Simplify right side
    20,798.48x = 393,879,124.37
  5. Step 5: Solve for x
    x = 393,879,124.37/20,798.48
  6. Step 6: Final answer
    x = 18,937.88

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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.