Home / 21,023.05-29,012.04-11,462.86

Finding the Fourth Proportional to 21,023.05, 29,012.04 and 11,462.86

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Solution

The fourth proportional to 21,023.05, 29,012.04 and 11,462.86 is: 15,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023.05 : 29,012.04 = 11,462.86 : x
  2. Step 2: Convert to fraction form
    21,023.05/29,012.04 = 11,462.86/x
  3. Step 3: Cross multiply
    21,023.05x = 29,012.04 × 11,462.86
  4. Step 4: Simplify right side
    21,023.05x = 332,560,750.46
  5. Step 5: Solve for x
    x = 332,560,750.46/21,023.05
  6. Step 6: Final answer
    x = 15,818.87

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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.