Home / 28,049.61-38,708.60-15,474.36

Finding the Fourth Proportional to 28,049.61, 38,708.60 and 15,474.36

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Solution

The fourth proportional to 28,049.61, 38,708.60 and 15,474.36 is: 21,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.61 : 38,708.60 = 15,474.36 : x
  2. Step 2: Convert to fraction form
    28,049.61/38,708.60 = 15,474.36/x
  3. Step 3: Cross multiply
    28,049.61x = 38,708.60 × 15,474.36
  4. Step 4: Simplify right side
    28,049.61x = 598,990,811.50
  5. Step 5: Solve for x
    x = 598,990,811.50/28,049.61
  6. Step 6: Final answer
    x = 21,354.69

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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.