Home / 42,619.70-63,929.49-11,454.95

Finding the Fourth Proportional to 42,619.70, 63,929.49 and 11,454.95

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Solution

The fourth proportional to 42,619.70, 63,929.49 and 11,454.95 is: 17,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619.70 : 63,929.49 = 11,454.95 : x
  2. Step 2: Convert to fraction form
    42,619.70/63,929.49 = 11,454.95/x
  3. Step 3: Cross multiply
    42,619.70x = 63,929.49 × 11,454.95
  4. Step 4: Simplify right side
    42,619.70x = 732,308,791.83
  5. Step 5: Solve for x
    x = 732,308,791.83/42,619.70
  6. Step 6: Final answer
    x = 17,182.40

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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.