Home / 42,382.44-63,558.36-12,791.16

Finding the Fourth Proportional to 42,382.44, 63,558.36 and 12,791.16

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Solution

The fourth proportional to 42,382.44, 63,558.36 and 12,791.16 is: 19,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,382.44 : 63,558.36 = 12,791.16 : x
  2. Step 2: Convert to fraction form
    42,382.44/63,558.36 = 12,791.16/x
  3. Step 3: Cross multiply
    42,382.44x = 63,558.36 × 12,791.16
  4. Step 4: Simplify right side
    42,382.44x = 812,985,152.10
  5. Step 5: Solve for x
    x = 812,985,152.10/42,382.44
  6. Step 6: Final answer
    x = 19,182.12

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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.