Home / 20,560.79-28,373.66-11,608.67

Finding the Fourth Proportional to 20,560.79, 28,373.66 and 11,608.67

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Solution

The fourth proportional to 20,560.79, 28,373.66 and 11,608.67 is: 16,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.79 : 28,373.66 = 11,608.67 : x
  2. Step 2: Convert to fraction form
    20,560.79/28,373.66 = 11,608.67/x
  3. Step 3: Cross multiply
    20,560.79x = 28,373.66 × 11,608.67
  4. Step 4: Simplify right side
    20,560.79x = 329,380,468.52
  5. Step 5: Solve for x
    x = 329,380,468.52/20,560.79
  6. Step 6: Final answer
    x = 16,019.83

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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.