Home / 42,548.66-63,822.96-19,147.76

Finding the Fourth Proportional to 42,548.66, 63,822.96 and 19,147.76

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Solution

The fourth proportional to 42,548.66, 63,822.96 and 19,147.76 is: 28,721.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,548.66 : 63,822.96 = 19,147.76 : x
  2. Step 2: Convert to fraction form
    42,548.66/63,822.96 = 19,147.76/x
  3. Step 3: Cross multiply
    42,548.66x = 63,822.96 × 19,147.76
  4. Step 4: Simplify right side
    42,548.66x = 1,222,066,720.57
  5. Step 5: Solve for x
    x = 1,222,066,720.57/42,548.66
  6. Step 6: Final answer
    x = 28,721.63

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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.