Home / 31,689.48-43,731.24-17,543.16

Finding the Fourth Proportional to 31,689.48, 43,731.24 and 17,543.16

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Solution

The fourth proportional to 31,689.48, 43,731.24 and 17,543.16 is: 24,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,689.48 : 43,731.24 = 17,543.16 : x
  2. Step 2: Convert to fraction form
    31,689.48/43,731.24 = 17,543.16/x
  3. Step 3: Cross multiply
    31,689.48x = 43,731.24 × 17,543.16
  4. Step 4: Simplify right side
    31,689.48x = 767,184,140.32
  5. Step 5: Solve for x
    x = 767,184,140.32/31,689.48
  6. Step 6: Final answer
    x = 24,209.43

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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.