Home / 26,785.80-40,178.72-10,987.92

Finding the Fourth Proportional to 26,785.80, 40,178.72 and 10,987.92

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Solution

The fourth proportional to 26,785.80, 40,178.72 and 10,987.92 is: 16,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,785.80 : 40,178.72 = 10,987.92 : x
  2. Step 2: Convert to fraction form
    26,785.80/40,178.72 = 10,987.92/x
  3. Step 3: Cross multiply
    26,785.80x = 40,178.72 × 10,987.92
  4. Step 4: Simplify right side
    26,785.80x = 441,480,561.06
  5. Step 5: Solve for x
    x = 441,480,561.06/26,785.80
  6. Step 6: Final answer
    x = 16,481.89

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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.