Home / 20,592.83-28,421.15-13,039.85

Finding the Fourth Proportional to 20,592.83, 28,421.15 and 13,039.85

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Solution

The fourth proportional to 20,592.83, 28,421.15 and 13,039.85 is: 17,996.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.83 : 28,421.15 = 13,039.85 : x
  2. Step 2: Convert to fraction form
    20,592.83/28,421.15 = 13,039.85/x
  3. Step 3: Cross multiply
    20,592.83x = 28,421.15 × 13,039.85
  4. Step 4: Simplify right side
    20,592.83x = 370,607,538.68
  5. Step 5: Solve for x
    x = 370,607,538.68/20,592.83
  6. Step 6: Final answer
    x = 17,996.92

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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.