Home / 27,129.50-37,436.63-15,191.21

Finding the Fourth Proportional to 27,129.50, 37,436.63 and 15,191.21

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Solution

The fourth proportional to 27,129.50, 37,436.63 and 15,191.21 is: 20,962.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.50 : 37,436.63 = 15,191.21 : x
  2. Step 2: Convert to fraction form
    27,129.50/37,436.63 = 15,191.21/x
  3. Step 3: Cross multiply
    27,129.50x = 37,436.63 × 15,191.21
  4. Step 4: Simplify right side
    27,129.50x = 568,707,811.11
  5. Step 5: Solve for x
    x = 568,707,811.11/27,129.50
  6. Step 6: Final answer
    x = 20,962.71

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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.