Home / 42,631.80-63,947.70-13,049.70

Finding the Fourth Proportional to 42,631.80, 63,947.70 and 13,049.70

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Solution

The fourth proportional to 42,631.80, 63,947.70 and 13,049.70 is: 19,574.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,631.80 : 63,947.70 = 13,049.70 : x
  2. Step 2: Convert to fraction form
    42,631.80/63,947.70 = 13,049.70/x
  3. Step 3: Cross multiply
    42,631.80x = 63,947.70 × 13,049.70
  4. Step 4: Simplify right side
    42,631.80x = 834,498,300.69
  5. Step 5: Solve for x
    x = 834,498,300.69/42,631.80
  6. Step 6: Final answer
    x = 19,574.55

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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.