Home / 27,874.68-38,466.56-15,775.04

Finding the Fourth Proportional to 27,874.68, 38,466.56 and 15,775.04

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Solution

The fourth proportional to 27,874.68, 38,466.56 and 15,775.04 is: 21,769.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,874.68 : 38,466.56 = 15,775.04 : x
  2. Step 2: Convert to fraction form
    27,874.68/38,466.56 = 15,775.04/x
  3. Step 3: Cross multiply
    27,874.68x = 38,466.56 × 15,775.04
  4. Step 4: Simplify right side
    27,874.68x = 606,811,522.66
  5. Step 5: Solve for x
    x = 606,811,522.66/27,874.68
  6. Step 6: Final answer
    x = 21,769.27

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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.