Home / 31,386.26-43,312.92-17,239.16

Finding the Fourth Proportional to 31,386.26, 43,312.92 and 17,239.16

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Solution

The fourth proportional to 31,386.26, 43,312.92 and 17,239.16 is: 23,789.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,386.26 : 43,312.92 = 17,239.16 : x
  2. Step 2: Convert to fraction form
    31,386.26/43,312.92 = 17,239.16/x
  3. Step 3: Cross multiply
    31,386.26x = 43,312.92 × 17,239.16
  4. Step 4: Simplify right side
    31,386.26x = 746,678,357.95
  5. Step 5: Solve for x
    x = 746,678,357.95/31,386.26
  6. Step 6: Final answer
    x = 23,789.98

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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.