Home / 20,732.64-28,610.60-12,663.52

Finding the Fourth Proportional to 20,732.64, 28,610.60 and 12,663.52

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Solution

The fourth proportional to 20,732.64, 28,610.60 and 12,663.52 is: 17,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.64 : 28,610.60 = 12,663.52 : x
  2. Step 2: Convert to fraction form
    20,732.64/28,610.60 = 12,663.52/x
  3. Step 3: Cross multiply
    20,732.64x = 28,610.60 × 12,663.52
  4. Step 4: Simplify right side
    20,732.64x = 362,310,841.70
  5. Step 5: Solve for x
    x = 362,310,841.70/20,732.64
  6. Step 6: Final answer
    x = 17,475.39

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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.