Home / 31,176.81-43,023.38-17,747.78

Finding the Fourth Proportional to 31,176.81, 43,023.38 and 17,747.78

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Solution

The fourth proportional to 31,176.81, 43,023.38 and 17,747.78 is: 24,491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,176.81 : 43,023.38 = 17,747.78 : x
  2. Step 2: Convert to fraction form
    31,176.81/43,023.38 = 17,747.78/x
  3. Step 3: Cross multiply
    31,176.81x = 43,023.38 × 17,747.78
  4. Step 4: Simplify right side
    31,176.81x = 763,569,179.24
  5. Step 5: Solve for x
    x = 763,569,179.24/31,176.81
  6. Step 6: Final answer
    x = 24,491.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.