Home / 26,642.08-39,963.20-6,920.80

Finding the Fourth Proportional to 26,642.08, 39,963.20 and 6,920.80

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Solution

The fourth proportional to 26,642.08, 39,963.20 and 6,920.80 is: 10,381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,642.08 : 39,963.20 = 6,920.80 : x
  2. Step 2: Convert to fraction form
    26,642.08/39,963.20 = 6,920.80/x
  3. Step 3: Cross multiply
    26,642.08x = 39,963.20 × 6,920.80
  4. Step 4: Simplify right side
    26,642.08x = 276,577,314.56
  5. Step 5: Solve for x
    x = 276,577,314.56/26,642.08
  6. Step 6: Final answer
    x = 10,381.22

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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.