Home / 38,915.18-58,286.44-31,771.90

Finding the Fourth Proportional to 38,915.18, 58,286.44 and 31,771.90

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Solution

The fourth proportional to 38,915.18, 58,286.44 and 31,771.90 is: 47,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,915.18 : 58,286.44 = 31,771.90 : x
  2. Step 2: Convert to fraction form
    38,915.18/58,286.44 = 31,771.90/x
  3. Step 3: Cross multiply
    38,915.18x = 58,286.44 × 31,771.90
  4. Step 4: Simplify right side
    38,915.18x = 1,851,870,549.03
  5. Step 5: Solve for x
    x = 1,851,870,549.03/38,915.18
  6. Step 6: Final answer
    x = 47,587.35

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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.