Home / 42,622.89-63,932.03-13,040.72

Finding the Fourth Proportional to 42,622.89, 63,932.03 and 13,040.72

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Solution

The fourth proportional to 42,622.89, 63,932.03 and 13,040.72 is: 19,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,622.89 : 63,932.03 = 13,040.72 : x
  2. Step 2: Convert to fraction form
    42,622.89/63,932.03 = 13,040.72/x
  3. Step 3: Cross multiply
    42,622.89x = 63,932.03 × 13,040.72
  4. Step 4: Simplify right side
    42,622.89x = 833,719,637.06
  5. Step 5: Solve for x
    x = 833,719,637.06/42,622.89
  6. Step 6: Final answer
    x = 19,560.37

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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.