Home / 31,690.85-43,734.53-17,543.99

Finding the Fourth Proportional to 31,690.85, 43,734.53 and 17,543.99

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Solution

The fourth proportional to 31,690.85, 43,734.53 and 17,543.99 is: 24,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,690.85 : 43,734.53 = 17,543.99 : x
  2. Step 2: Convert to fraction form
    31,690.85/43,734.53 = 17,543.99/x
  3. Step 3: Cross multiply
    31,690.85x = 43,734.53 × 17,543.99
  4. Step 4: Simplify right side
    31,690.85x = 767,278,310.17
  5. Step 5: Solve for x
    x = 767,278,310.17/31,690.85
  6. Step 6: Final answer
    x = 24,211.36

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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.