Home / 27,678.90-41,510.66-7,683.79

Finding the Fourth Proportional to 27,678.90, 41,510.66 and 7,683.79

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Solution

The fourth proportional to 27,678.90, 41,510.66 and 7,683.79 is: 11,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,678.90 : 41,510.66 = 7,683.79 : x
  2. Step 2: Convert to fraction form
    27,678.90/41,510.66 = 7,683.79/x
  3. Step 3: Cross multiply
    27,678.90x = 41,510.66 × 7,683.79
  4. Step 4: Simplify right side
    27,678.90x = 318,959,155.78
  5. Step 5: Solve for x
    x = 318,959,155.78/27,678.90
  6. Step 6: Final answer
    x = 11,523.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.