Home / 27,921.17-38,531.59-15,174.60

Finding the Fourth Proportional to 27,921.17, 38,531.59 and 15,174.60

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Solution

The fourth proportional to 27,921.17, 38,531.59 and 15,174.60 is: 20,941.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.17 : 38,531.59 = 15,174.60 : x
  2. Step 2: Convert to fraction form
    27,921.17/38,531.59 = 15,174.60/x
  3. Step 3: Cross multiply
    27,921.17x = 38,531.59 × 15,174.60
  4. Step 4: Simplify right side
    27,921.17x = 584,701,499.92
  5. Step 5: Solve for x
    x = 584,701,499.92/27,921.17
  6. Step 6: Final answer
    x = 20,941.16

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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.