Home / 42,584.09-63,876.14-19,217.21

Finding the Fourth Proportional to 42,584.09, 63,876.14 and 19,217.21

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Solution

The fourth proportional to 42,584.09, 63,876.14 and 19,217.21 is: 28,825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,584.09 : 63,876.14 = 19,217.21 : x
  2. Step 2: Convert to fraction form
    42,584.09/63,876.14 = 19,217.21/x
  3. Step 3: Cross multiply
    42,584.09x = 63,876.14 × 19,217.21
  4. Step 4: Simplify right side
    42,584.09x = 1,227,521,100.28
  5. Step 5: Solve for x
    x = 1,227,521,100.28/42,584.09
  6. Step 6: Final answer
    x = 28,825.82

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1.5x scale

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.