Home / 22,839.76-31,520.08-13,885.80

Finding the Fourth Proportional to 22,839.76, 31,520.08 and 13,885.80

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Solution

The fourth proportional to 22,839.76, 31,520.08 and 13,885.80 is: 19,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,839.76 : 31,520.08 = 13,885.80 : x
  2. Step 2: Convert to fraction form
    22,839.76/31,520.08 = 13,885.80/x
  3. Step 3: Cross multiply
    22,839.76x = 31,520.08 × 13,885.80
  4. Step 4: Simplify right side
    22,839.76x = 437,681,526.86
  5. Step 5: Solve for x
    x = 437,681,526.86/22,839.76
  6. Step 6: Final answer
    x = 19,163.14

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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.