Home / 38,979.28-53,793.48-22,208.72

Finding the Fourth Proportional to 38,979.28, 53,793.48 and 22,208.72

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Solution

The fourth proportional to 38,979.28, 53,793.48 and 22,208.72 is: 30,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,979.28 : 53,793.48 = 22,208.72 : x
  2. Step 2: Convert to fraction form
    38,979.28/53,793.48 = 22,208.72/x
  3. Step 3: Cross multiply
    38,979.28x = 53,793.48 × 22,208.72
  4. Step 4: Simplify right side
    38,979.28x = 1,194,684,335.15
  5. Step 5: Solve for x
    x = 1,194,684,335.15/38,979.28
  6. Step 6: Final answer
    x = 30,649.22

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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.