Home / 42,261.68-63,393.24-15,978.80

Finding the Fourth Proportional to 42,261.68, 63,393.24 and 15,978.80

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Solution

The fourth proportional to 42,261.68, 63,393.24 and 15,978.80 is: 23,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,261.68 : 63,393.24 = 15,978.80 : x
  2. Step 2: Convert to fraction form
    42,261.68/63,393.24 = 15,978.80/x
  3. Step 3: Cross multiply
    42,261.68x = 63,393.24 × 15,978.80
  4. Step 4: Simplify right side
    42,261.68x = 1,012,947,903.31
  5. Step 5: Solve for x
    x = 1,012,947,903.31/42,261.68
  6. Step 6: Final answer
    x = 23,968.47

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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.