Home / 40,344.16-55,613.28-28,374.88

Finding the Fourth Proportional to 40,344.16, 55,613.28 and 28,374.88

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Solution

The fourth proportional to 40,344.16, 55,613.28 and 28,374.88 is: 39,113.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,344.16 : 55,613.28 = 28,374.88 : x
  2. Step 2: Convert to fraction form
    40,344.16/55,613.28 = 28,374.88/x
  3. Step 3: Cross multiply
    40,344.16x = 55,613.28 × 28,374.88
  4. Step 4: Simplify right side
    40,344.16x = 1,578,020,146.41
  5. Step 5: Solve for x
    x = 1,578,020,146.41/40,344.16
  6. Step 6: Final answer
    x = 39,113.97

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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.