Home / 31,339.55-47,004.68-9,146.97

Finding the Fourth Proportional to 31,339.55, 47,004.68 and 9,146.97

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Solution

The fourth proportional to 31,339.55, 47,004.68 and 9,146.97 is: 13,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339.55 : 47,004.68 = 9,146.97 : x
  2. Step 2: Convert to fraction form
    31,339.55/47,004.68 = 9,146.97/x
  3. Step 3: Cross multiply
    31,339.55x = 47,004.68 × 9,146.97
  4. Step 4: Simplify right side
    31,339.55x = 429,950,397.82
  5. Step 5: Solve for x
    x = 429,950,397.82/31,339.55
  6. Step 6: Final answer
    x = 13,719.10

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1.5x scale

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.