Home / 27,866.40-38,456.24-15,291.16

Finding the Fourth Proportional to 27,866.40, 38,456.24 and 15,291.16

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Solution

The fourth proportional to 27,866.40, 38,456.24 and 15,291.16 is: 21,102.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,866.40 : 38,456.24 = 15,291.16 : x
  2. Step 2: Convert to fraction form
    27,866.40/38,456.24 = 15,291.16/x
  3. Step 3: Cross multiply
    27,866.40x = 38,456.24 × 15,291.16
  4. Step 4: Simplify right side
    27,866.40x = 588,040,518.84
  5. Step 5: Solve for x
    x = 588,040,518.84/27,866.40
  6. Step 6: Final answer
    x = 21,102.13

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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.