Home / 27,864.42-38,451.69-15,289.44

Finding the Fourth Proportional to 27,864.42, 38,451.69 and 15,289.44

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Solution

The fourth proportional to 27,864.42, 38,451.69 and 15,289.44 is: 21,098.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.42 : 38,451.69 = 15,289.44 : x
  2. Step 2: Convert to fraction form
    27,864.42/38,451.69 = 15,289.44/x
  3. Step 3: Cross multiply
    27,864.42x = 38,451.69 × 15,289.44
  4. Step 4: Simplify right side
    27,864.42x = 587,904,807.15
  5. Step 5: Solve for x
    x = 587,904,807.15/27,864.42
  6. Step 6: Final answer
    x = 21,098.76

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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.