Home / 31,515.56-47,238.78-15,065

Finding the Fourth Proportional to 31,515.56, 47,238.78 and 15,065

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Solution

The fourth proportional to 31,515.56, 47,238.78 and 15,065 is: 22,580.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.56 : 47,238.78 = 15,065 : x
  2. Step 2: Convert to fraction form
    31,515.56/47,238.78 = 15,065/x
  3. Step 3: Cross multiply
    31,515.56x = 47,238.78 × 15,065
  4. Step 4: Simplify right side
    31,515.56x = 711,652,220.70
  5. Step 5: Solve for x
    x = 711,652,220.70/31,515.56
  6. Step 6: Final answer
    x = 22,580.98

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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.