Home / 39,475.13-54,474.06-21,570.75

Finding the Fourth Proportional to 39,475.13, 54,474.06 and 21,570.75

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Solution

The fourth proportional to 39,475.13, 54,474.06 and 21,570.75 is: 29,766.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,475.13 : 54,474.06 = 21,570.75 : x
  2. Step 2: Convert to fraction form
    39,475.13/54,474.06 = 21,570.75/x
  3. Step 3: Cross multiply
    39,475.13x = 54,474.06 × 21,570.75
  4. Step 4: Simplify right side
    39,475.13x = 1,175,046,329.75
  5. Step 5: Solve for x
    x = 1,175,046,329.75/39,475.13
  6. Step 6: Final answer
    x = 29,766.75

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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.