Home / 42,960.97-64,438.89-13,374.64

Finding the Fourth Proportional to 42,960.97, 64,438.89 and 13,374.64

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Solution

The fourth proportional to 42,960.97, 64,438.89 and 13,374.64 is: 20,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,960.97 : 64,438.89 = 13,374.64 : x
  2. Step 2: Convert to fraction form
    42,960.97/64,438.89 = 13,374.64/x
  3. Step 3: Cross multiply
    42,960.97x = 64,438.89 × 13,374.64
  4. Step 4: Simplify right side
    42,960.97x = 861,846,955.75
  5. Step 5: Solve for x
    x = 861,846,955.75/42,960.97
  6. Step 6: Final answer
    x = 20,061.16

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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.