Home / 39,280.06-54,205.60-21,375.11

Finding the Fourth Proportional to 39,280.06, 54,205.60 and 21,375.11

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Solution

The fourth proportional to 39,280.06, 54,205.60 and 21,375.11 is: 29,497.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.06 : 54,205.60 = 21,375.11 : x
  2. Step 2: Convert to fraction form
    39,280.06/54,205.60 = 21,375.11/x
  3. Step 3: Cross multiply
    39,280.06x = 54,205.60 × 21,375.11
  4. Step 4: Simplify right side
    39,280.06x = 1,158,650,662.62
  5. Step 5: Solve for x
    x = 1,158,650,662.62/39,280.06
  6. Step 6: Final answer
    x = 29,497.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.