Home / 20,522-28,320.36-14,937.68

Finding the Fourth Proportional to 20,522, 28,320.36 and 14,937.68

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Solution

The fourth proportional to 20,522, 28,320.36 and 14,937.68 is: 20,614.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522 : 28,320.36 = 14,937.68 : x
  2. Step 2: Convert to fraction form
    20,522/28,320.36 = 14,937.68/x
  3. Step 3: Cross multiply
    20,522x = 28,320.36 × 14,937.68
  4. Step 4: Simplify right side
    20,522x = 423,040,475.16
  5. Step 5: Solve for x
    x = 423,040,475.16/20,522
  6. Step 6: Final answer
    x = 20,614.00

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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.