Home / 31,689.08-43,730.76-17,541.88

Finding the Fourth Proportional to 31,689.08, 43,730.76 and 17,541.88

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Solution

The fourth proportional to 31,689.08, 43,730.76 and 17,541.88 is: 24,207.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,689.08 : 43,730.76 = 17,541.88 : x
  2. Step 2: Convert to fraction form
    31,689.08/43,730.76 = 17,541.88/x
  3. Step 3: Cross multiply
    31,689.08x = 43,730.76 × 17,541.88
  4. Step 4: Simplify right side
    31,689.08x = 767,119,744.23
  5. Step 5: Solve for x
    x = 767,119,744.23/31,689.08
  6. Step 6: Final answer
    x = 24,207.70

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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.