Home / 31,872.87-43,985.53-17,531.97

Finding the Fourth Proportional to 31,872.87, 43,985.53 and 17,531.97

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Solution

The fourth proportional to 31,872.87, 43,985.53 and 17,531.97 is: 24,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,872.87 : 43,985.53 = 17,531.97 : x
  2. Step 2: Convert to fraction form
    31,872.87/43,985.53 = 17,531.97/x
  3. Step 3: Cross multiply
    31,872.87x = 43,985.53 × 17,531.97
  4. Step 4: Simplify right side
    31,872.87x = 771,152,973.07
  5. Step 5: Solve for x
    x = 771,152,973.07/31,872.87
  6. Step 6: Final answer
    x = 24,194.65

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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.