Home / 27,788.03-38,347.12-15,851.57

Finding the Fourth Proportional to 27,788.03, 38,347.12 and 15,851.57

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Solution

The fourth proportional to 27,788.03, 38,347.12 and 15,851.57 is: 21,874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.03 : 38,347.12 = 15,851.57 : x
  2. Step 2: Convert to fraction form
    27,788.03/38,347.12 = 15,851.57/x
  3. Step 3: Cross multiply
    27,788.03x = 38,347.12 × 15,851.57
  4. Step 4: Simplify right side
    27,788.03x = 607,861,885.06
  5. Step 5: Solve for x
    x = 607,861,885.06/27,788.03
  6. Step 6: Final answer
    x = 21,874.96

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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.