Home / 31,379.81-47,026.98-17,318.88

Finding the Fourth Proportional to 31,379.81, 47,026.98 and 17,318.88

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Solution

The fourth proportional to 31,379.81, 47,026.98 and 17,318.88 is: 25,954.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.81 : 47,026.98 = 17,318.88 : x
  2. Step 2: Convert to fraction form
    31,379.81/47,026.98 = 17,318.88/x
  3. Step 3: Cross multiply
    31,379.81x = 47,026.98 × 17,318.88
  4. Step 4: Simplify right side
    31,379.81x = 814,454,623.38
  5. Step 5: Solve for x
    x = 814,454,623.38/31,379.81
  6. Step 6: Final answer
    x = 25,954.74

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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.