Home / 27,177.68-40,772.28-8,722.64

Finding the Fourth Proportional to 27,177.68, 40,772.28 and 8,722.64

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Solution

The fourth proportional to 27,177.68, 40,772.28 and 8,722.64 is: 13,085.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,177.68 : 40,772.28 = 8,722.64 : x
  2. Step 2: Convert to fraction form
    27,177.68/40,772.28 = 8,722.64/x
  3. Step 3: Cross multiply
    27,177.68x = 40,772.28 × 8,722.64
  4. Step 4: Simplify right side
    27,177.68x = 355,641,920.42
  5. Step 5: Solve for x
    x = 355,641,920.42/27,177.68
  6. Step 6: Final answer
    x = 13,085.81

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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.