Home / 27,640.50-38,143.86-15,065.25

Finding the Fourth Proportional to 27,640.50, 38,143.86 and 15,065.25

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Solution

The fourth proportional to 27,640.50, 38,143.86 and 15,065.25 is: 20,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.50 : 38,143.86 = 15,065.25 : x
  2. Step 2: Convert to fraction form
    27,640.50/38,143.86 = 15,065.25/x
  3. Step 3: Cross multiply
    27,640.50x = 38,143.86 × 15,065.25
  4. Step 4: Simplify right side
    27,640.50x = 574,646,711.54
  5. Step 5: Solve for x
    x = 574,646,711.54/27,640.50
  6. Step 6: Final answer
    x = 20,790.03

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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.