Home / 31,124.07-42,952.59-16,976.91

Finding the Fourth Proportional to 31,124.07, 42,952.59 and 16,976.91

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Solution

The fourth proportional to 31,124.07, 42,952.59 and 16,976.91 is: 23,428.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,124.07 : 42,952.59 = 16,976.91 : x
  2. Step 2: Convert to fraction form
    31,124.07/42,952.59 = 16,976.91/x
  3. Step 3: Cross multiply
    31,124.07x = 42,952.59 × 16,976.91
  4. Step 4: Simplify right side
    31,124.07x = 729,202,254.70
  5. Step 5: Solve for x
    x = 729,202,254.70/31,124.07
  6. Step 6: Final answer
    x = 23,428.88

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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.