Home / 31,539.78-47,305.62-14,678.82

Finding the Fourth Proportional to 31,539.78, 47,305.62 and 14,678.82

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Solution

The fourth proportional to 31,539.78, 47,305.62 and 14,678.82 is: 22,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.78 : 47,305.62 = 14,678.82 : x
  2. Step 2: Convert to fraction form
    31,539.78/47,305.62 = 14,678.82/x
  3. Step 3: Cross multiply
    31,539.78x = 47,305.62 × 14,678.82
  4. Step 4: Simplify right side
    31,539.78x = 694,390,680.97
  5. Step 5: Solve for x
    x = 694,390,680.97/31,539.78
  6. Step 6: Final answer
    x = 22,016.35

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1.5x scale

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.