Home / 27,580.92-38,061.42-15,005.64

Finding the Fourth Proportional to 27,580.92, 38,061.42 and 15,005.64

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Solution

The fourth proportional to 27,580.92, 38,061.42 and 15,005.64 is: 20,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,580.92 : 38,061.42 = 15,005.64 : x
  2. Step 2: Convert to fraction form
    27,580.92/38,061.42 = 15,005.64/x
  3. Step 3: Cross multiply
    27,580.92x = 38,061.42 × 15,005.64
  4. Step 4: Simplify right side
    27,580.92x = 571,135,966.41
  5. Step 5: Solve for x
    x = 571,135,966.41/27,580.92
  6. Step 6: Final answer
    x = 20,707.65

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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.