Home / 27,898.50-38,500.20-15,323.52

Finding the Fourth Proportional to 27,898.50, 38,500.20 and 15,323.52

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Solution

The fourth proportional to 27,898.50, 38,500.20 and 15,323.52 is: 21,146.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,898.50 : 38,500.20 = 15,323.52 : x
  2. Step 2: Convert to fraction form
    27,898.50/38,500.20 = 15,323.52/x
  3. Step 3: Cross multiply
    27,898.50x = 38,500.20 × 15,323.52
  4. Step 4: Simplify right side
    27,898.50x = 589,958,584.70
  5. Step 5: Solve for x
    x = 589,958,584.70/27,898.50
  6. Step 6: Final answer
    x = 21,146.61

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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.