Home / 27,789.67-38,346.17-15,852.30

Finding the Fourth Proportional to 27,789.67, 38,346.17 and 15,852.30

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Solution

The fourth proportional to 27,789.67, 38,346.17 and 15,852.30 is: 21,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.67 : 38,346.17 = 15,852.30 : x
  2. Step 2: Convert to fraction form
    27,789.67/38,346.17 = 15,852.30/x
  3. Step 3: Cross multiply
    27,789.67x = 38,346.17 × 15,852.30
  4. Step 4: Simplify right side
    27,789.67x = 607,874,990.69
  5. Step 5: Solve for x
    x = 607,874,990.69/27,789.67
  6. Step 6: Final answer
    x = 21,874.13

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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.