Home / 39,589.12-54,623.36-21,925.12

Finding the Fourth Proportional to 39,589.12, 54,623.36 and 21,925.12

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Solution

The fourth proportional to 39,589.12, 54,623.36 and 21,925.12 is: 30,251.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,589.12 : 54,623.36 = 21,925.12 : x
  2. Step 2: Convert to fraction form
    39,589.12/54,623.36 = 21,925.12/x
  3. Step 3: Cross multiply
    39,589.12x = 54,623.36 × 21,925.12
  4. Step 4: Simplify right side
    39,589.12x = 1,197,623,722.80
  5. Step 5: Solve for x
    x = 1,197,623,722.80/39,589.12
  6. Step 6: Final answer
    x = 30,251.33

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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.