Home / 25,425.90-38,140.47-8,787.42

Finding the Fourth Proportional to 25,425.90, 38,140.47 and 8,787.42

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Solution

The fourth proportional to 25,425.90, 38,140.47 and 8,787.42 is: 13,181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,425.90 : 38,140.47 = 8,787.42 : x
  2. Step 2: Convert to fraction form
    25,425.90/38,140.47 = 8,787.42/x
  3. Step 3: Cross multiply
    25,425.90x = 38,140.47 × 8,787.42
  4. Step 4: Simplify right side
    25,425.90x = 335,156,328.89
  5. Step 5: Solve for x
    x = 335,156,328.89/25,425.90
  6. Step 6: Final answer
    x = 13,181.69

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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.