Home / 31,587.67-43,590.96-18,161.55

Finding the Fourth Proportional to 31,587.67, 43,590.96 and 18,161.55

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Solution

The fourth proportional to 31,587.67, 43,590.96 and 18,161.55 is: 25,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,587.67 : 43,590.96 = 18,161.55 : x
  2. Step 2: Convert to fraction form
    31,587.67/43,590.96 = 18,161.55/x
  3. Step 3: Cross multiply
    31,587.67x = 43,590.96 × 18,161.55
  4. Step 4: Simplify right side
    31,587.67x = 791,679,399.59
  5. Step 5: Solve for x
    x = 791,679,399.59/31,587.67
  6. Step 6: Final answer
    x = 25,062.92

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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.