Home / 20,529.72-30,806.46-11,170.71

Finding the Fourth Proportional to 20,529.72, 30,806.46 and 11,170.71

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Solution

The fourth proportional to 20,529.72, 30,806.46 and 11,170.71 is: 16,762.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.72 : 30,806.46 = 11,170.71 : x
  2. Step 2: Convert to fraction form
    20,529.72/30,806.46 = 11,170.71/x
  3. Step 3: Cross multiply
    20,529.72x = 30,806.46 × 11,170.71
  4. Step 4: Simplify right side
    20,529.72x = 344,130,030.79
  5. Step 5: Solve for x
    x = 344,130,030.79/20,529.72
  6. Step 6: Final answer
    x = 16,762.53

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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.