Home / 40,386-55,733.16-22,481.76

Finding the Fourth Proportional to 40,386, 55,733.16 and 22,481.76

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Solution

The fourth proportional to 40,386, 55,733.16 and 22,481.76 is: 31,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,386 : 55,733.16 = 22,481.76 : x
  2. Step 2: Convert to fraction form
    40,386/55,733.16 = 22,481.76/x
  3. Step 3: Cross multiply
    40,386x = 55,733.16 × 22,481.76
  4. Step 4: Simplify right side
    40,386x = 1,252,979,527.16
  5. Step 5: Solve for x
    x = 1,252,979,527.16/40,386
  6. Step 6: Final answer
    x = 31,025.10

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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.