Home / 39,282.23-54,209.38-21,377.23

Finding the Fourth Proportional to 39,282.23, 54,209.38 and 21,377.23

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Solution

The fourth proportional to 39,282.23, 54,209.38 and 21,377.23 is: 29,500.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,282.23 : 54,209.38 = 21,377.23 : x
  2. Step 2: Convert to fraction form
    39,282.23/54,209.38 = 21,377.23/x
  3. Step 3: Cross multiply
    39,282.23x = 54,209.38 × 21,377.23
  4. Step 4: Simplify right side
    39,282.23x = 1,158,846,277.53
  5. Step 5: Solve for x
    x = 1,158,846,277.53/39,282.23
  6. Step 6: Final answer
    x = 29,500.52

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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.