Home / 20,133.17-27,793.21-12,590.59

Finding the Fourth Proportional to 20,133.17, 27,793.21 and 12,590.59

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Solution

The fourth proportional to 20,133.17, 27,793.21 and 12,590.59 is: 17,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.17 : 27,793.21 = 12,590.59 : x
  2. Step 2: Convert to fraction form
    20,133.17/27,793.21 = 12,590.59/x
  3. Step 3: Cross multiply
    20,133.17x = 27,793.21 × 12,590.59
  4. Step 4: Simplify right side
    20,133.17x = 349,932,886.65
  5. Step 5: Solve for x
    x = 349,932,886.65/20,133.17
  6. Step 6: Final answer
    x = 17,380.91

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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.