Home / 20,472.14-28,302.30-20,285.34

Finding the Fourth Proportional to 20,472.14, 28,302.30 and 20,285.34

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Solution

The fourth proportional to 20,472.14, 28,302.30 and 20,285.34 is: 28,044.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,472.14 : 28,302.30 = 20,285.34 : x
  2. Step 2: Convert to fraction form
    20,472.14/28,302.30 = 20,285.34/x
  3. Step 3: Cross multiply
    20,472.14x = 28,302.30 × 20,285.34
  4. Step 4: Simplify right side
    20,472.14x = 574,121,778.28
  5. Step 5: Solve for x
    x = 574,121,778.28/20,472.14
  6. Step 6: Final answer
    x = 28,044.06

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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.