Home / 14,459.90-21,689.85-13,423.10

Finding the Fourth Proportional to 14,459.90, 21,689.85 and 13,423.10

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Solution

The fourth proportional to 14,459.90, 21,689.85 and 13,423.10 is: 20,134.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,459.90 : 21,689.85 = 13,423.10 : x
  2. Step 2: Convert to fraction form
    14,459.90/21,689.85 = 13,423.10/x
  3. Step 3: Cross multiply
    14,459.90x = 21,689.85 × 13,423.10
  4. Step 4: Simplify right side
    14,459.90x = 291,145,025.54
  5. Step 5: Solve for x
    x = 291,145,025.54/14,459.90
  6. Step 6: Final answer
    x = 20,134.65

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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.