Home / 27,707.91-38,235.15-15,132.66

Finding the Fourth Proportional to 27,707.91, 38,235.15 and 15,132.66

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Solution

The fourth proportional to 27,707.91, 38,235.15 and 15,132.66 is: 20,882.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,707.91 : 38,235.15 = 15,132.66 : x
  2. Step 2: Convert to fraction form
    27,707.91/38,235.15 = 15,132.66/x
  3. Step 3: Cross multiply
    27,707.91x = 38,235.15 × 15,132.66
  4. Step 4: Simplify right side
    27,707.91x = 578,599,525.00
  5. Step 5: Solve for x
    x = 578,599,525.00/27,707.91
  6. Step 6: Final answer
    x = 20,882.11

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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.