Home / 27,739.42-38,280.30-15,164.18

Finding the Fourth Proportional to 27,739.42, 38,280.30 and 15,164.18

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Solution

The fourth proportional to 27,739.42, 38,280.30 and 15,164.18 is: 20,926.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,739.42 : 38,280.30 = 15,164.18 : x
  2. Step 2: Convert to fraction form
    27,739.42/38,280.30 = 15,164.18/x
  3. Step 3: Cross multiply
    27,739.42x = 38,280.30 × 15,164.18
  4. Step 4: Simplify right side
    27,739.42x = 580,489,359.65
  5. Step 5: Solve for x
    x = 580,489,359.65/27,739.42
  6. Step 6: Final answer
    x = 20,926.51

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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.