Home / 27,189.46-37,542.45-21,909.07

Finding the Fourth Proportional to 27,189.46, 37,542.45 and 21,909.07

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Solution

The fourth proportional to 27,189.46, 37,542.45 and 21,909.07 is: 30,251.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,189.46 : 37,542.45 = 21,909.07 : x
  2. Step 2: Convert to fraction form
    27,189.46/37,542.45 = 21,909.07/x
  3. Step 3: Cross multiply
    27,189.46x = 37,542.45 × 21,909.07
  4. Step 4: Simplify right side
    27,189.46x = 822,520,165.02
  5. Step 5: Solve for x
    x = 822,520,165.02/27,189.46
  6. Step 6: Final answer
    x = 30,251.43

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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.