Home / 42,630.16-63,942.90-13,047.97

Finding the Fourth Proportional to 42,630.16, 63,942.90 and 13,047.97

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Solution

The fourth proportional to 42,630.16, 63,942.90 and 13,047.97 is: 19,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,630.16 : 63,942.90 = 13,047.97 : x
  2. Step 2: Convert to fraction form
    42,630.16/63,942.90 = 13,047.97/x
  3. Step 3: Cross multiply
    42,630.16x = 63,942.90 × 13,047.97
  4. Step 4: Simplify right side
    42,630.16x = 834,325,040.91
  5. Step 5: Solve for x
    x = 834,325,040.91/42,630.16
  6. Step 6: Final answer
    x = 19,571.24

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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.