Home / 27,928.47-38,541.21-15,181.65

Finding the Fourth Proportional to 27,928.47, 38,541.21 and 15,181.65

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Solution

The fourth proportional to 27,928.47, 38,541.21 and 15,181.65 is: 20,950.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.47 : 38,541.21 = 15,181.65 : x
  2. Step 2: Convert to fraction form
    27,928.47/38,541.21 = 15,181.65/x
  3. Step 3: Cross multiply
    27,928.47x = 38,541.21 × 15,181.65
  4. Step 4: Simplify right side
    27,928.47x = 585,119,160.80
  5. Step 5: Solve for x
    x = 585,119,160.80/27,928.47
  6. Step 6: Final answer
    x = 20,950.63

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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.