Home / 21,023.67-29,012.90-11,463.48

Finding the Fourth Proportional to 21,023.67, 29,012.90 and 11,463.48

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Solution

The fourth proportional to 21,023.67, 29,012.90 and 11,463.48 is: 15,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023.67 : 29,012.90 = 11,463.48 : x
  2. Step 2: Convert to fraction form
    21,023.67/29,012.90 = 11,463.48/x
  3. Step 3: Cross multiply
    21,023.67x = 29,012.90 × 11,463.48
  4. Step 4: Simplify right side
    21,023.67x = 332,588,741.57
  5. Step 5: Solve for x
    x = 332,588,741.57/21,023.67
  6. Step 6: Final answer
    x = 15,819.73

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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.