Home / 39,700.92-54,784.26-21,793.08

Finding the Fourth Proportional to 39,700.92, 54,784.26 and 21,793.08

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Solution

The fourth proportional to 39,700.92, 54,784.26 and 21,793.08 is: 30,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,700.92 : 54,784.26 = 21,793.08 : x
  2. Step 2: Convert to fraction form
    39,700.92/54,784.26 = 21,793.08/x
  3. Step 3: Cross multiply
    39,700.92x = 54,784.26 × 21,793.08
  4. Step 4: Simplify right side
    39,700.92x = 1,193,917,760.92
  5. Step 5: Solve for x
    x = 1,193,917,760.92/39,700.92
  6. Step 6: Final answer
    x = 30,072.80

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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.