Home / 40,387.28-60,578.36-19,342.32

Finding the Fourth Proportional to 40,387.28, 60,578.36 and 19,342.32

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Solution

The fourth proportional to 40,387.28, 60,578.36 and 19,342.32 is: 29,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,387.28 : 60,578.36 = 19,342.32 : x
  2. Step 2: Convert to fraction form
    40,387.28/60,578.36 = 19,342.32/x
  3. Step 3: Cross multiply
    40,387.28x = 60,578.36 × 19,342.32
  4. Step 4: Simplify right side
    40,387.28x = 1,171,726,024.20
  5. Step 5: Solve for x
    x = 1,171,726,024.20/40,387.28
  6. Step 6: Final answer
    x = 29,012.25

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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.