Home / 27,709.28-38,238.85-15,772.62

Finding the Fourth Proportional to 27,709.28, 38,238.85 and 15,772.62

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Solution

The fourth proportional to 27,709.28, 38,238.85 and 15,772.62 is: 21,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,709.28 : 38,238.85 = 15,772.62 : x
  2. Step 2: Convert to fraction form
    27,709.28/38,238.85 = 15,772.62/x
  3. Step 3: Cross multiply
    27,709.28x = 38,238.85 × 15,772.62
  4. Step 4: Simplify right side
    27,709.28x = 603,126,690.76
  5. Step 5: Solve for x
    x = 603,126,690.76/27,709.28
  6. Step 6: Final answer
    x = 21,766.23

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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.