Home / 26,995.20-37,238.40-15,815.04

Finding the Fourth Proportional to 26,995.20, 37,238.40 and 15,815.04

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Solution

The fourth proportional to 26,995.20, 37,238.40 and 15,815.04 is: 21,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,995.20 : 37,238.40 = 15,815.04 : x
  2. Step 2: Convert to fraction form
    26,995.20/37,238.40 = 15,815.04/x
  3. Step 3: Cross multiply
    26,995.20x = 37,238.40 × 15,815.04
  4. Step 4: Simplify right side
    26,995.20x = 588,926,785.54
  5. Step 5: Solve for x
    x = 588,926,785.54/26,995.20
  6. Step 6: Final answer
    x = 21,815.98

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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.