Home / 27,789.03-38,348.50-15,852.57

Finding the Fourth Proportional to 27,789.03, 38,348.50 and 15,852.57

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Solution

The fourth proportional to 27,789.03, 38,348.50 and 15,852.57 is: 21,876.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.03 : 38,348.50 = 15,852.57 : x
  2. Step 2: Convert to fraction form
    27,789.03/38,348.50 = 15,852.57/x
  3. Step 3: Cross multiply
    27,789.03x = 38,348.50 × 15,852.57
  4. Step 4: Simplify right side
    27,789.03x = 607,922,280.65
  5. Step 5: Solve for x
    x = 607,922,280.65/27,789.03
  6. Step 6: Final answer
    x = 21,876.34

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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.