Home / 31,531.41-47,306.25-9,345.21

Finding the Fourth Proportional to 31,531.41, 47,306.25 and 9,345.21

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Solution

The fourth proportional to 31,531.41, 47,306.25 and 9,345.21 is: 14,020.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.41 : 47,306.25 = 9,345.21 : x
  2. Step 2: Convert to fraction form
    31,531.41/47,306.25 = 9,345.21/x
  3. Step 3: Cross multiply
    31,531.41x = 47,306.25 × 9,345.21
  4. Step 4: Simplify right side
    31,531.41x = 442,086,840.56
  5. Step 5: Solve for x
    x = 442,086,840.56/31,531.41
  6. Step 6: Final answer
    x = 14,020.52

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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.