Home / 20,633.67-28,396.17-19,748.07

Finding the Fourth Proportional to 20,633.67, 28,396.17 and 19,748.07

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Solution

The fourth proportional to 20,633.67, 28,396.17 and 19,748.07 is: 27,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.67 : 28,396.17 = 19,748.07 : x
  2. Step 2: Convert to fraction form
    20,633.67/28,396.17 = 19,748.07/x
  3. Step 3: Cross multiply
    20,633.67x = 28,396.17 × 19,748.07
  4. Step 4: Simplify right side
    20,633.67x = 560,769,552.89
  5. Step 5: Solve for x
    x = 560,769,552.89/20,633.67
  6. Step 6: Final answer
    x = 27,177.40

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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.