Home / 20,897.52-28,839.24-11,466.72

Finding the Fourth Proportional to 20,897.52, 28,839.24 and 11,466.72

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Solution

The fourth proportional to 20,897.52, 28,839.24 and 11,466.72 is: 15,824.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.52 : 28,839.24 = 11,466.72 : x
  2. Step 2: Convert to fraction form
    20,897.52/28,839.24 = 11,466.72/x
  3. Step 3: Cross multiply
    20,897.52x = 28,839.24 × 11,466.72
  4. Step 4: Simplify right side
    20,897.52x = 330,691,490.09
  5. Step 5: Solve for x
    x = 330,691,490.09/20,897.52
  6. Step 6: Final answer
    x = 15,824.44

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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.