Home / 38,878.72-58,318.56-15,491.52

Finding the Fourth Proportional to 38,878.72, 58,318.56 and 15,491.52

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Solution

The fourth proportional to 38,878.72, 58,318.56 and 15,491.52 is: 23,237.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,878.72 : 58,318.56 = 15,491.52 : x
  2. Step 2: Convert to fraction form
    38,878.72/58,318.56 = 15,491.52/x
  3. Step 3: Cross multiply
    38,878.72x = 58,318.56 × 15,491.52
  4. Step 4: Simplify right side
    38,878.72x = 903,443,138.61
  5. Step 5: Solve for x
    x = 903,443,138.61/38,878.72
  6. Step 6: Final answer
    x = 23,237.47

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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.