Home / 20,924.02-28,893.90-15,609.61

Finding the Fourth Proportional to 20,924.02, 28,893.90 and 15,609.61

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Solution

The fourth proportional to 20,924.02, 28,893.90 and 15,609.61 is: 21,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.02 : 28,893.90 = 15,609.61 : x
  2. Step 2: Convert to fraction form
    20,924.02/28,893.90 = 15,609.61/x
  3. Step 3: Cross multiply
    20,924.02x = 28,893.90 × 15,609.61
  4. Step 4: Simplify right side
    20,924.02x = 451,022,510.38
  5. Step 5: Solve for x
    x = 451,022,510.38/20,924.02
  6. Step 6: Final answer
    x = 21,555.25

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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.