Home / 42,363.24-63,566.28-20,172.48

Finding the Fourth Proportional to 42,363.24, 63,566.28 and 20,172.48

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Solution

The fourth proportional to 42,363.24, 63,566.28 and 20,172.48 is: 30,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,363.24 : 63,566.28 = 20,172.48 : x
  2. Step 2: Convert to fraction form
    42,363.24/63,566.28 = 20,172.48/x
  3. Step 3: Cross multiply
    42,363.24x = 63,566.28 × 20,172.48
  4. Step 4: Simplify right side
    42,363.24x = 1,282,289,511.97
  5. Step 5: Solve for x
    x = 1,282,289,511.97/42,363.24
  6. Step 6: Final answer
    x = 30,268.92

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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.