Home / 40,421.76-55,781.82-22,515.66

Finding the Fourth Proportional to 40,421.76, 55,781.82 and 22,515.66

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Solution

The fourth proportional to 40,421.76, 55,781.82 and 22,515.66 is: 31,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421.76 : 55,781.82 = 22,515.66 : x
  2. Step 2: Convert to fraction form
    40,421.76/55,781.82 = 22,515.66/x
  3. Step 3: Cross multiply
    40,421.76x = 55,781.82 × 22,515.66
  4. Step 4: Simplify right side
    40,421.76x = 1,255,964,493.30
  5. Step 5: Solve for x
    x = 1,255,964,493.30/40,421.76
  6. Step 6: Final answer
    x = 31,071.49

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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.