Home / 25,386.87-38,102.18-12,250.29

Finding the Fourth Proportional to 25,386.87, 38,102.18 and 12,250.29

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Solution

The fourth proportional to 25,386.87, 38,102.18 and 12,250.29 is: 18,385.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,386.87 : 38,102.18 = 12,250.29 : x
  2. Step 2: Convert to fraction form
    25,386.87/38,102.18 = 12,250.29/x
  3. Step 3: Cross multiply
    25,386.87x = 38,102.18 × 12,250.29
  4. Step 4: Simplify right side
    25,386.87x = 466,762,905.17
  5. Step 5: Solve for x
    x = 466,762,905.17/25,386.87
  6. Step 6: Final answer
    x = 18,385.99

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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.