Home / 39,261.68-54,182.01-21,357.65

Finding the Fourth Proportional to 39,261.68, 54,182.01 and 21,357.65

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Solution

The fourth proportional to 39,261.68, 54,182.01 and 21,357.65 is: 29,474.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,261.68 : 54,182.01 = 21,357.65 : x
  2. Step 2: Convert to fraction form
    39,261.68/54,182.01 = 21,357.65/x
  3. Step 3: Cross multiply
    39,261.68x = 54,182.01 × 21,357.65
  4. Step 4: Simplify right side
    39,261.68x = 1,157,200,134.97
  5. Step 5: Solve for x
    x = 1,157,200,134.97/39,261.68
  6. Step 6: Final answer
    x = 29,474.04

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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.