Home / 20,926.06-28,865.91-12,537.70

Finding the Fourth Proportional to 20,926.06, 28,865.91 and 12,537.70

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Solution

The fourth proportional to 20,926.06, 28,865.91 and 12,537.70 is: 17,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.06 : 28,865.91 = 12,537.70 : x
  2. Step 2: Convert to fraction form
    20,926.06/28,865.91 = 12,537.70/x
  3. Step 3: Cross multiply
    20,926.06x = 28,865.91 × 12,537.70
  4. Step 4: Simplify right side
    20,926.06x = 361,912,119.81
  5. Step 5: Solve for x
    x = 361,912,119.81/20,926.06
  6. Step 6: Final answer
    x = 17,294.80

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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.