Home / 31,393.03-47,082.24-11,680.87

Finding the Fourth Proportional to 31,393.03, 47,082.24 and 11,680.87

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Solution

The fourth proportional to 31,393.03, 47,082.24 and 11,680.87 is: 17,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,393.03 : 47,082.24 = 11,680.87 : x
  2. Step 2: Convert to fraction form
    31,393.03/47,082.24 = 11,680.87/x
  3. Step 3: Cross multiply
    31,393.03x = 47,082.24 × 11,680.87
  4. Step 4: Simplify right side
    31,393.03x = 549,961,524.75
  5. Step 5: Solve for x
    x = 549,961,524.75/31,393.03
  6. Step 6: Final answer
    x = 17,518.59

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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.