Home / 42,146.88-63,201.60-22,421.28

Finding the Fourth Proportional to 42,146.88, 63,201.60 and 22,421.28

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Solution

The fourth proportional to 42,146.88, 63,201.60 and 22,421.28 is: 33,621.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,146.88 : 63,201.60 = 22,421.28 : x
  2. Step 2: Convert to fraction form
    42,146.88/63,201.60 = 22,421.28/x
  3. Step 3: Cross multiply
    42,146.88x = 63,201.60 × 22,421.28
  4. Step 4: Simplify right side
    42,146.88x = 1,417,060,770.05
  5. Step 5: Solve for x
    x = 1,417,060,770.05/42,146.88
  6. Step 6: Final answer
    x = 33,621.96

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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.