Home / 31,384.14-43,312.77-17,239.92

Finding the Fourth Proportional to 31,384.14, 43,312.77 and 17,239.92

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Solution

The fourth proportional to 31,384.14, 43,312.77 and 17,239.92 is: 23,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,384.14 : 43,312.77 = 17,239.92 : x
  2. Step 2: Convert to fraction form
    31,384.14/43,312.77 = 17,239.92/x
  3. Step 3: Cross multiply
    31,384.14x = 43,312.77 × 17,239.92
  4. Step 4: Simplify right side
    31,384.14x = 746,708,689.78
  5. Step 5: Solve for x
    x = 746,708,689.78/31,384.14
  6. Step 6: Final answer
    x = 23,792.55

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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.