Home / 27,600.60-38,085.66-15,661.56

Finding the Fourth Proportional to 27,600.60, 38,085.66 and 15,661.56

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Solution

The fourth proportional to 27,600.60, 38,085.66 and 15,661.56 is: 21,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,600.60 : 38,085.66 = 15,661.56 : x
  2. Step 2: Convert to fraction form
    27,600.60/38,085.66 = 15,661.56/x
  3. Step 3: Cross multiply
    27,600.60x = 38,085.66 × 15,661.56
  4. Step 4: Simplify right side
    27,600.60x = 596,480,849.23
  5. Step 5: Solve for x
    x = 596,480,849.23/27,600.60
  6. Step 6: Final answer
    x = 21,611.16

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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.