Home / 27,128.64-37,436.49-15,191.38

Finding the Fourth Proportional to 27,128.64, 37,436.49 and 15,191.38

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Solution

The fourth proportional to 27,128.64, 37,436.49 and 15,191.38 is: 20,963.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.64 : 37,436.49 = 15,191.38 : x
  2. Step 2: Convert to fraction form
    27,128.64/37,436.49 = 15,191.38/x
  3. Step 3: Cross multiply
    27,128.64x = 37,436.49 × 15,191.38
  4. Step 4: Simplify right side
    27,128.64x = 568,711,945.46
  5. Step 5: Solve for x
    x = 568,711,945.46/27,128.64
  6. Step 6: Final answer
    x = 20,963.53

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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.