Home / 39,278.79-54,201.42-22,279.32

Finding the Fourth Proportional to 39,278.79, 54,201.42 and 22,279.32

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Solution

The fourth proportional to 39,278.79, 54,201.42 and 22,279.32 is: 30,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.79 : 54,201.42 = 22,279.32 : x
  2. Step 2: Convert to fraction form
    39,278.79/54,201.42 = 22,279.32/x
  3. Step 3: Cross multiply
    39,278.79x = 54,201.42 × 22,279.32
  4. Step 4: Simplify right side
    39,278.79x = 1,207,570,780.63
  5. Step 5: Solve for x
    x = 1,207,570,780.63/39,278.79
  6. Step 6: Final answer
    x = 30,743.58

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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.