Home / 27,880.96-38,476.40-15,134.11

Finding the Fourth Proportional to 27,880.96, 38,476.40 and 15,134.11

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Solution

The fourth proportional to 27,880.96, 38,476.40 and 15,134.11 is: 20,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,880.96 : 38,476.40 = 15,134.11 : x
  2. Step 2: Convert to fraction form
    27,880.96/38,476.40 = 15,134.11/x
  3. Step 3: Cross multiply
    27,880.96x = 38,476.40 × 15,134.11
  4. Step 4: Simplify right side
    27,880.96x = 582,306,011.65
  5. Step 5: Solve for x
    x = 582,306,011.65/27,880.96
  6. Step 6: Final answer
    x = 20,885.44

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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.