Home / 27,428.25-37,872.38-21,044.70

Finding the Fourth Proportional to 27,428.25, 37,872.38 and 21,044.70

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Solution

The fourth proportional to 27,428.25, 37,872.38 and 21,044.70 is: 29,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,428.25 : 37,872.38 = 21,044.70 : x
  2. Step 2: Convert to fraction form
    27,428.25/37,872.38 = 21,044.70/x
  3. Step 3: Cross multiply
    27,428.25x = 37,872.38 × 21,044.70
  4. Step 4: Simplify right side
    27,428.25x = 797,012,770.16
  5. Step 5: Solve for x
    x = 797,012,770.16/27,428.25
  6. Step 6: Final answer
    x = 29,058.10

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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.