Home / 42,269.22-63,403.83-12,687.48

Finding the Fourth Proportional to 42,269.22, 63,403.83 and 12,687.48

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Solution

The fourth proportional to 42,269.22, 63,403.83 and 12,687.48 is: 19,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,269.22 : 63,403.83 = 12,687.48 : x
  2. Step 2: Convert to fraction form
    42,269.22/63,403.83 = 12,687.48/x
  3. Step 3: Cross multiply
    42,269.22x = 63,403.83 × 12,687.48
  4. Step 4: Simplify right side
    42,269.22x = 804,434,825.05
  5. Step 5: Solve for x
    x = 804,434,825.05/42,269.22
  6. Step 6: Final answer
    x = 19,031.22

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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.