Home / 21,048.42-29,046.99-11,488.38

Finding the Fourth Proportional to 21,048.42, 29,046.99 and 11,488.38

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Solution

The fourth proportional to 21,048.42, 29,046.99 and 11,488.38 is: 15,854.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.42 : 29,046.99 = 11,488.38 : x
  2. Step 2: Convert to fraction form
    21,048.42/29,046.99 = 11,488.38/x
  3. Step 3: Cross multiply
    21,048.42x = 29,046.99 × 11,488.38
  4. Step 4: Simplify right side
    21,048.42x = 333,702,858.98
  5. Step 5: Solve for x
    x = 333,702,858.98/21,048.42
  6. Step 6: Final answer
    x = 15,854.06

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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.