Home / 38,459.10-57,688.65-12,165.90

Finding the Fourth Proportional to 38,459.10, 57,688.65 and 12,165.90

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Solution

The fourth proportional to 38,459.10, 57,688.65 and 12,165.90 is: 18,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,459.10 : 57,688.65 = 12,165.90 : x
  2. Step 2: Convert to fraction form
    38,459.10/57,688.65 = 12,165.90/x
  3. Step 3: Cross multiply
    38,459.10x = 57,688.65 × 12,165.90
  4. Step 4: Simplify right side
    38,459.10x = 701,834,347.04
  5. Step 5: Solve for x
    x = 701,834,347.04/38,459.10
  6. Step 6: Final answer
    x = 18,248.85

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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.