Home / 27,800.27-38,360.68-15,862.89

Finding the Fourth Proportional to 27,800.27, 38,360.68 and 15,862.89

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Solution

The fourth proportional to 27,800.27, 38,360.68 and 15,862.89 is: 21,888.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,800.27 : 38,360.68 = 15,862.89 : x
  2. Step 2: Convert to fraction form
    27,800.27/38,360.68 = 15,862.89/x
  3. Step 3: Cross multiply
    27,800.27x = 38,360.68 × 15,862.89
  4. Step 4: Simplify right side
    27,800.27x = 608,511,247.17
  5. Step 5: Solve for x
    x = 608,511,247.17/27,800.27
  6. Step 6: Final answer
    x = 21,888.68

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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.