Home / 54,428.15-81,636.05-18,882.92

Finding the Fourth Proportional to 54,428.15, 81,636.05 and 18,882.92

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Solution

The fourth proportional to 54,428.15, 81,636.05 and 18,882.92 is: 28,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,428.15 : 81,636.05 = 18,882.92 : x
  2. Step 2: Convert to fraction form
    54,428.15/81,636.05 = 18,882.92/x
  3. Step 3: Cross multiply
    54,428.15x = 81,636.05 × 18,882.92
  4. Step 4: Simplify right side
    54,428.15x = 1,541,527,252.56
  5. Step 5: Solve for x
    x = 1,541,527,252.56/54,428.15
  6. Step 6: Final answer
    x = 28,322.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.