Home / 20,047.50-30,060.21-13,729.65

Finding the Fourth Proportional to 20,047.50, 30,060.21 and 13,729.65

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Solution

The fourth proportional to 20,047.50, 30,060.21 and 13,729.65 is: 20,586.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,047.50 : 30,060.21 = 13,729.65 : x
  2. Step 2: Convert to fraction form
    20,047.50/30,060.21 = 13,729.65/x
  3. Step 3: Cross multiply
    20,047.50x = 30,060.21 × 13,729.65
  4. Step 4: Simplify right side
    20,047.50x = 412,716,270.08
  5. Step 5: Solve for x
    x = 412,716,270.08/20,047.50
  6. Step 6: Final answer
    x = 20,586.92

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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.