Home / 39,727.43-54,821.15-21,823.19

Finding the Fourth Proportional to 39,727.43, 54,821.15 and 21,823.19

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Solution

The fourth proportional to 39,727.43, 54,821.15 and 21,823.19 is: 30,114.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,727.43 : 54,821.15 = 21,823.19 : x
  2. Step 2: Convert to fraction form
    39,727.43/54,821.15 = 21,823.19/x
  3. Step 3: Cross multiply
    39,727.43x = 54,821.15 × 21,823.19
  4. Step 4: Simplify right side
    39,727.43x = 1,196,372,399.42
  5. Step 5: Solve for x
    x = 1,196,372,399.42/39,727.43
  6. Step 6: Final answer
    x = 30,114.52

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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.