Home / 26,290.47-36,282.33-15,680.79

Finding the Fourth Proportional to 26,290.47, 36,282.33 and 15,680.79

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Solution

The fourth proportional to 26,290.47, 36,282.33 and 15,680.79 is: 21,640.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,290.47 : 36,282.33 = 15,680.79 : x
  2. Step 2: Convert to fraction form
    26,290.47/36,282.33 = 15,680.79/x
  3. Step 3: Cross multiply
    26,290.47x = 36,282.33 × 15,680.79
  4. Step 4: Simplify right side
    26,290.47x = 568,935,597.44
  5. Step 5: Solve for x
    x = 568,935,597.44/26,290.47
  6. Step 6: Final answer
    x = 21,640.37

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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.