Home / 20,301.42-28,013.86-11,348.67

Finding the Fourth Proportional to 20,301.42, 28,013.86 and 11,348.67

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Solution

The fourth proportional to 20,301.42, 28,013.86 and 11,348.67 is: 15,659.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.42 : 28,013.86 = 11,348.67 : x
  2. Step 2: Convert to fraction form
    20,301.42/28,013.86 = 11,348.67/x
  3. Step 3: Cross multiply
    20,301.42x = 28,013.86 × 11,348.67
  4. Step 4: Simplify right side
    20,301.42x = 317,919,855.75
  5. Step 5: Solve for x
    x = 317,919,855.75/20,301.42
  6. Step 6: Final answer
    x = 15,659.99

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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.