Home / 47,538.23-71,301.78-12,480.62

Finding the Fourth Proportional to 47,538.23, 71,301.78 and 12,480.62

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Solution

The fourth proportional to 47,538.23, 71,301.78 and 12,480.62 is: 18,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,538.23 : 71,301.78 = 12,480.62 : x
  2. Step 2: Convert to fraction form
    47,538.23/71,301.78 = 12,480.62/x
  3. Step 3: Cross multiply
    47,538.23x = 71,301.78 × 12,480.62
  4. Step 4: Simplify right side
    47,538.23x = 889,890,064.99
  5. Step 5: Solve for x
    x = 889,890,064.99/47,538.23
  6. Step 6: Final answer
    x = 18,719.46

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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.