Home / 25,639.61-38,459.71-9,000.11

Finding the Fourth Proportional to 25,639.61, 38,459.71 and 9,000.11

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Solution

The fourth proportional to 25,639.61, 38,459.71 and 9,000.11 is: 13,500.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,639.61 : 38,459.71 = 9,000.11 : x
  2. Step 2: Convert to fraction form
    25,639.61/38,459.71 = 9,000.11/x
  3. Step 3: Cross multiply
    25,639.61x = 38,459.71 × 9,000.11
  4. Step 4: Simplify right side
    25,639.61x = 346,141,727.97
  5. Step 5: Solve for x
    x = 346,141,727.97/25,639.61
  6. Step 6: Final answer
    x = 13,500.28

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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.