Home / 21,022.66-29,011.25-11,462.55

Finding the Fourth Proportional to 21,022.66, 29,011.25 and 11,462.55

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Solution

The fourth proportional to 21,022.66, 29,011.25 and 11,462.55 is: 15,818.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.66 : 29,011.25 = 11,462.55 : x
  2. Step 2: Convert to fraction form
    21,022.66/29,011.25 = 11,462.55/x
  3. Step 3: Cross multiply
    21,022.66x = 29,011.25 × 11,462.55
  4. Step 4: Simplify right side
    21,022.66x = 332,542,823.55
  5. Step 5: Solve for x
    x = 332,542,823.55/21,022.66
  6. Step 6: Final answer
    x = 15,818.31

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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.