Home / 31,659.28-43,689.30-17,511.76

Finding the Fourth Proportional to 31,659.28, 43,689.30 and 17,511.76

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Solution

The fourth proportional to 31,659.28, 43,689.30 and 17,511.76 is: 24,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,659.28 : 43,689.30 = 17,511.76 : x
  2. Step 2: Convert to fraction form
    31,659.28/43,689.30 = 17,511.76/x
  3. Step 3: Cross multiply
    31,659.28x = 43,689.30 × 17,511.76
  4. Step 4: Simplify right side
    31,659.28x = 765,076,536.17
  5. Step 5: Solve for x
    x = 765,076,536.17/31,659.28
  6. Step 6: Final answer
    x = 24,165.95

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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.