Home / 20,337.32-28,063.14-11,385.32

Finding the Fourth Proportional to 20,337.32, 28,063.14 and 11,385.32

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Solution

The fourth proportional to 20,337.32, 28,063.14 and 11,385.32 is: 15,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.32 : 28,063.14 = 11,385.32 : x
  2. Step 2: Convert to fraction form
    20,337.32/28,063.14 = 11,385.32/x
  3. Step 3: Cross multiply
    20,337.32x = 28,063.14 × 11,385.32
  4. Step 4: Simplify right side
    20,337.32x = 319,507,829.10
  5. Step 5: Solve for x
    x = 319,507,829.10/20,337.32
  6. Step 6: Final answer
    x = 15,710.42

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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.