Home / 31,442.73-47,160.49-11,721.93

Finding the Fourth Proportional to 31,442.73, 47,160.49 and 11,721.93

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Solution

The fourth proportional to 31,442.73, 47,160.49 and 11,721.93 is: 17,581.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.73 : 47,160.49 = 11,721.93 : x
  2. Step 2: Convert to fraction form
    31,442.73/47,160.49 = 11,721.93/x
  3. Step 3: Cross multiply
    31,442.73x = 47,160.49 × 11,721.93
  4. Step 4: Simplify right side
    31,442.73x = 552,811,962.55
  5. Step 5: Solve for x
    x = 552,811,962.55/31,442.73
  6. Step 6: Final answer
    x = 17,581.55

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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.