Home / 20,620.19-28,404.95-17,585.43

Finding the Fourth Proportional to 20,620.19, 28,404.95 and 17,585.43

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Solution

The fourth proportional to 20,620.19, 28,404.95 and 17,585.43 is: 24,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.19 : 28,404.95 = 17,585.43 : x
  2. Step 2: Convert to fraction form
    20,620.19/28,404.95 = 17,585.43/x
  3. Step 3: Cross multiply
    20,620.19x = 28,404.95 × 17,585.43
  4. Step 4: Simplify right side
    20,620.19x = 499,513,171.95
  5. Step 5: Solve for x
    x = 499,513,171.95/20,620.19
  6. Step 6: Final answer
    x = 24,224.48

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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.