Home / 26,681.12-36,800.88-20,382.56

Finding the Fourth Proportional to 26,681.12, 36,800.88 and 20,382.56

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Solution

The fourth proportional to 26,681.12, 36,800.88 and 20,382.56 is: 28,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,681.12 : 36,800.88 = 20,382.56 : x
  2. Step 2: Convert to fraction form
    26,681.12/36,800.88 = 20,382.56/x
  3. Step 3: Cross multiply
    26,681.12x = 36,800.88 × 20,382.56
  4. Step 4: Simplify right side
    26,681.12x = 750,096,144.65
  5. Step 5: Solve for x
    x = 750,096,144.65/26,681.12
  6. Step 6: Final answer
    x = 28,113.37

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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.