Home / 39,454.40-54,447.38-21,549.08

Finding the Fourth Proportional to 39,454.40, 54,447.38 and 21,549.08

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Solution

The fourth proportional to 39,454.40, 54,447.38 and 21,549.08 is: 29,737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,454.40 : 54,447.38 = 21,549.08 : x
  2. Step 2: Convert to fraction form
    39,454.40/54,447.38 = 21,549.08/x
  3. Step 3: Cross multiply
    39,454.40x = 54,447.38 × 21,549.08
  4. Step 4: Simplify right side
    39,454.40x = 1,173,290,947.41
  5. Step 5: Solve for x
    x = 1,173,290,947.41/39,454.40
  6. Step 6: Final answer
    x = 29,737.90

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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.