Home / 27,739.18-38,279.91-15,163.93

Finding the Fourth Proportional to 27,739.18, 38,279.91 and 15,163.93

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Solution

The fourth proportional to 27,739.18, 38,279.91 and 15,163.93 is: 20,926.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,739.18 : 38,279.91 = 15,163.93 : x
  2. Step 2: Convert to fraction form
    27,739.18/38,279.91 = 15,163.93/x
  3. Step 3: Cross multiply
    27,739.18x = 38,279.91 × 15,163.93
  4. Step 4: Simplify right side
    27,739.18x = 580,473,875.65
  5. Step 5: Solve for x
    x = 580,473,875.65/27,739.18
  6. Step 6: Final answer
    x = 20,926.14

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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.