Home / 28,380.28-42,570.42-10,614.82

Finding the Fourth Proportional to 28,380.28, 42,570.42 and 10,614.82

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Solution

The fourth proportional to 28,380.28, 42,570.42 and 10,614.82 is: 15,922.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.28 : 42,570.42 = 10,614.82 : x
  2. Step 2: Convert to fraction form
    28,380.28/42,570.42 = 10,614.82/x
  3. Step 3: Cross multiply
    28,380.28x = 42,570.42 × 10,614.82
  4. Step 4: Simplify right side
    28,380.28x = 451,877,345.62
  5. Step 5: Solve for x
    x = 451,877,345.62/28,380.28
  6. Step 6: Final answer
    x = 15,922.23

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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.