Home / 10,031.45-15,038.97-3,787.92

Finding the Fourth Proportional to 10,031.45, 15,038.97 and 3,787.92

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Solution

The fourth proportional to 10,031.45, 15,038.97 and 3,787.92 is: 5,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.45 : 15,038.97 = 3,787.92 : x
  2. Step 2: Convert to fraction form
    10,031.45/15,038.97 = 3,787.92/x
  3. Step 3: Cross multiply
    10,031.45x = 15,038.97 × 3,787.92
  4. Step 4: Simplify right side
    10,031.45x = 56,966,401.04
  5. Step 5: Solve for x
    x = 56,966,401.04/10,031.45
  6. Step 6: Final answer
    x = 5,678.78

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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.