Home / 20,337.13-28,062.01-11,385.01

Finding the Fourth Proportional to 20,337.13, 28,062.01 and 11,385.01

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Solution

The fourth proportional to 20,337.13, 28,062.01 and 11,385.01 is: 15,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.13 : 28,062.01 = 11,385.01 : x
  2. Step 2: Convert to fraction form
    20,337.13/28,062.01 = 11,385.01/x
  3. Step 3: Cross multiply
    20,337.13x = 28,062.01 × 11,385.01
  4. Step 4: Simplify right side
    20,337.13x = 319,486,264.47
  5. Step 5: Solve for x
    x = 319,486,264.47/20,337.13
  6. Step 6: Final answer
    x = 15,709.51

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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.