Home / 21,475.32-29,663.56-16,500.76

Finding the Fourth Proportional to 21,475.32, 29,663.56 and 16,500.76

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Solution

The fourth proportional to 21,475.32, 29,663.56 and 16,500.76 is: 22,792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.32 : 29,663.56 = 16,500.76 : x
  2. Step 2: Convert to fraction form
    21,475.32/29,663.56 = 16,500.76/x
  3. Step 3: Cross multiply
    21,475.32x = 29,663.56 × 16,500.76
  4. Step 4: Simplify right side
    21,475.32x = 489,471,284.31
  5. Step 5: Solve for x
    x = 489,471,284.31/21,475.32
  6. Step 6: Final answer
    x = 22,792.27

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Half scale
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Double scale
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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.