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Finding the Fourth Proportional to 42,252, 63,378.90 and 15,969.12

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Solution

The fourth proportional to 42,252, 63,378.90 and 15,969.12 is: 23,954.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,252 : 63,378.90 = 15,969.12 : x
  2. Step 2: Convert to fraction form
    42,252/63,378.90 = 15,969.12/x
  3. Step 3: Cross multiply
    42,252x = 63,378.90 × 15,969.12
  4. Step 4: Simplify right side
    42,252x = 1,012,105,259.57
  5. Step 5: Solve for x
    x = 1,012,105,259.57/42,252
  6. Step 6: Final answer
    x = 23,954.02

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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.