Home / 27,760.78-38,315.46-19,280.62

Finding the Fourth Proportional to 27,760.78, 38,315.46 and 19,280.62

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Solution

The fourth proportional to 27,760.78, 38,315.46 and 19,280.62 is: 26,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,760.78 : 38,315.46 = 19,280.62 : x
  2. Step 2: Convert to fraction form
    27,760.78/38,315.46 = 19,280.62/x
  3. Step 3: Cross multiply
    27,760.78x = 38,315.46 × 19,280.62
  4. Step 4: Simplify right side
    27,760.78x = 738,745,824.39
  5. Step 5: Solve for x
    x = 738,745,824.39/27,760.78
  6. Step 6: Final answer
    x = 26,611.13

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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.