Home / 31,434.81-43,379.17-17,287.65

Finding the Fourth Proportional to 31,434.81, 43,379.17 and 17,287.65

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Solution

The fourth proportional to 31,434.81, 43,379.17 and 17,287.65 is: 23,856.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.81 : 43,379.17 = 17,287.65 : x
  2. Step 2: Convert to fraction form
    31,434.81/43,379.17 = 17,287.65/x
  3. Step 3: Cross multiply
    31,434.81x = 43,379.17 × 17,287.65
  4. Step 4: Simplify right side
    31,434.81x = 749,923,821.81
  5. Step 5: Solve for x
    x = 749,923,821.81/31,434.81
  6. Step 6: Final answer
    x = 23,856.48

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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.