Home / 27,693.84-38,217-15,118.56

Finding the Fourth Proportional to 27,693.84, 38,217 and 15,118.56

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Solution

The fourth proportional to 27,693.84, 38,217 and 15,118.56 is: 20,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,693.84 : 38,217 = 15,118.56 : x
  2. Step 2: Convert to fraction form
    27,693.84/38,217 = 15,118.56/x
  3. Step 3: Cross multiply
    27,693.84x = 38,217 × 15,118.56
  4. Step 4: Simplify right side
    27,693.84x = 577,786,007.52
  5. Step 5: Solve for x
    x = 577,786,007.52/27,693.84
  6. Step 6: Final answer
    x = 20,863.34

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Double scale
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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.