Home / 42,644.88-63,970.56-11,480.40

Finding the Fourth Proportional to 42,644.88, 63,970.56 and 11,480.40

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Solution

The fourth proportional to 42,644.88, 63,970.56 and 11,480.40 is: 17,221.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,644.88 : 63,970.56 = 11,480.40 : x
  2. Step 2: Convert to fraction form
    42,644.88/63,970.56 = 11,480.40/x
  3. Step 3: Cross multiply
    42,644.88x = 63,970.56 × 11,480.40
  4. Step 4: Simplify right side
    42,644.88x = 734,407,617.02
  5. Step 5: Solve for x
    x = 734,407,617.02/42,644.88
  6. Step 6: Final answer
    x = 17,221.47

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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.