Home / 39,166.20-54,049.16-21,261.06

Finding the Fourth Proportional to 39,166.20, 54,049.16 and 21,261.06

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Solution

The fourth proportional to 39,166.20, 54,049.16 and 21,261.06 is: 29,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,166.20 : 54,049.16 = 21,261.06 : x
  2. Step 2: Convert to fraction form
    39,166.20/54,049.16 = 21,261.06/x
  3. Step 3: Cross multiply
    39,166.20x = 54,049.16 × 21,261.06
  4. Step 4: Simplify right side
    39,166.20x = 1,149,142,486.86
  5. Step 5: Solve for x
    x = 1,149,142,486.86/39,166.20
  6. Step 6: Final answer
    x = 29,340.16

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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.