Home / 39,279.75-54,213.35-22,512.75

Finding the Fourth Proportional to 39,279.75, 54,213.35 and 22,512.75

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Solution

The fourth proportional to 39,279.75, 54,213.35 and 22,512.75 is: 31,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.75 : 54,213.35 = 22,512.75 : x
  2. Step 2: Convert to fraction form
    39,279.75/54,213.35 = 22,512.75/x
  3. Step 3: Cross multiply
    39,279.75x = 54,213.35 × 22,512.75
  4. Step 4: Simplify right side
    39,279.75x = 1,220,491,482.65
  5. Step 5: Solve for x
    x = 1,220,491,482.65/39,279.75
  6. Step 6: Final answer
    x = 31,071.77

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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.