Home / 27,834.17-38,380.57-21,446.64

Finding the Fourth Proportional to 27,834.17, 38,380.57 and 21,446.64

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Solution

The fourth proportional to 27,834.17, 38,380.57 and 21,446.64 is: 29,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,834.17 : 38,380.57 = 21,446.64 : x
  2. Step 2: Convert to fraction form
    27,834.17/38,380.57 = 21,446.64/x
  3. Step 3: Cross multiply
    27,834.17x = 38,380.57 × 21,446.64
  4. Step 4: Simplify right side
    27,834.17x = 823,134,214.17
  5. Step 5: Solve for x
    x = 823,134,214.17/27,834.17
  6. Step 6: Final answer
    x = 29,572.80

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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.