Home / 27,661.56-38,176.18-15,726.68

Finding the Fourth Proportional to 27,661.56, 38,176.18 and 15,726.68

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Solution

The fourth proportional to 27,661.56, 38,176.18 and 15,726.68 is: 21,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.56 : 38,176.18 = 15,726.68 : x
  2. Step 2: Convert to fraction form
    27,661.56/38,176.18 = 15,726.68/x
  3. Step 3: Cross multiply
    27,661.56x = 38,176.18 × 15,726.68
  4. Step 4: Simplify right side
    27,661.56x = 600,384,622.61
  5. Step 5: Solve for x
    x = 600,384,622.61/27,661.56
  6. Step 6: Final answer
    x = 21,704.66

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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.