Home / 47,430.38-71,145.56-12,369.92

Finding the Fourth Proportional to 47,430.38, 71,145.56 and 12,369.92

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Solution

The fourth proportional to 47,430.38, 71,145.56 and 12,369.92 is: 18,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,430.38 : 71,145.56 = 12,369.92 : x
  2. Step 2: Convert to fraction form
    47,430.38/71,145.56 = 12,369.92/x
  3. Step 3: Cross multiply
    47,430.38x = 71,145.56 × 12,369.92
  4. Step 4: Simplify right side
    47,430.38x = 880,064,885.56
  5. Step 5: Solve for x
    x = 880,064,885.56/47,430.38
  6. Step 6: Final answer
    x = 18,554.88

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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.