Home / 27,580.76-38,061.42-15,005.42

Finding the Fourth Proportional to 27,580.76, 38,061.42 and 15,005.42

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Solution

The fourth proportional to 27,580.76, 38,061.42 and 15,005.42 is: 20,707.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,580.76 : 38,061.42 = 15,005.42 : x
  2. Step 2: Convert to fraction form
    27,580.76/38,061.42 = 15,005.42/x
  3. Step 3: Cross multiply
    27,580.76x = 38,061.42 × 15,005.42
  4. Step 4: Simplify right side
    27,580.76x = 571,127,592.90
  5. Step 5: Solve for x
    x = 571,127,592.90/27,580.76
  6. Step 6: Final answer
    x = 20,707.46

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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.