Home / 27,920.80-41,876.40-10,381.60

Finding the Fourth Proportional to 27,920.80, 41,876.40 and 10,381.60

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Solution

The fourth proportional to 27,920.80, 41,876.40 and 10,381.60 is: 15,570.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.80 : 41,876.40 = 10,381.60 : x
  2. Step 2: Convert to fraction form
    27,920.80/41,876.40 = 10,381.60/x
  3. Step 3: Cross multiply
    27,920.80x = 41,876.40 × 10,381.60
  4. Step 4: Simplify right side
    27,920.80x = 434,744,034.24
  5. Step 5: Solve for x
    x = 434,744,034.24/27,920.80
  6. Step 6: Final answer
    x = 15,570.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.