Home / 20,315.60-30,474.03-5,524.85

Finding the Fourth Proportional to 20,315.60, 30,474.03 and 5,524.85

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Solution

The fourth proportional to 20,315.60, 30,474.03 and 5,524.85 is: 8,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315.60 : 30,474.03 = 5,524.85 : x
  2. Step 2: Convert to fraction form
    20,315.60/30,474.03 = 5,524.85/x
  3. Step 3: Cross multiply
    20,315.60x = 30,474.03 × 5,524.85
  4. Step 4: Simplify right side
    20,315.60x = 168,364,444.65
  5. Step 5: Solve for x
    x = 168,364,444.65/20,315.60
  6. Step 6: Final answer
    x = 8,287.45

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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.