Home / 39,166.19-54,049.21-21,261.07

Finding the Fourth Proportional to 39,166.19, 54,049.21 and 21,261.07

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Solution

The fourth proportional to 39,166.19, 54,049.21 and 21,261.07 is: 29,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,166.19 : 54,049.21 = 21,261.07 : x
  2. Step 2: Convert to fraction form
    39,166.19/54,049.21 = 21,261.07/x
  3. Step 3: Cross multiply
    39,166.19x = 54,049.21 × 21,261.07
  4. Step 4: Simplify right side
    39,166.19x = 1,149,143,827.07
  5. Step 5: Solve for x
    x = 1,149,143,827.07/39,166.19
  6. Step 6: Final answer
    x = 29,340.20

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Half scale
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Double scale
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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.