Home / 19,520.07-29,280.12-15,649.08

Finding the Fourth Proportional to 19,520.07, 29,280.12 and 15,649.08

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Solution

The fourth proportional to 19,520.07, 29,280.12 and 15,649.08 is: 23,473.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.07 : 29,280.12 = 15,649.08 : x
  2. Step 2: Convert to fraction form
    19,520.07/29,280.12 = 15,649.08/x
  3. Step 3: Cross multiply
    19,520.07x = 29,280.12 × 15,649.08
  4. Step 4: Simplify right side
    19,520.07x = 458,206,940.29
  5. Step 5: Solve for x
    x = 458,206,940.29/19,520.07
  6. Step 6: Final answer
    x = 23,473.63

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.