Home / 21,048.05-29,046.47-11,488.01

Finding the Fourth Proportional to 21,048.05, 29,046.47 and 11,488.01

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Solution

The fourth proportional to 21,048.05, 29,046.47 and 11,488.01 is: 15,853.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.05 : 29,046.47 = 11,488.01 : x
  2. Step 2: Convert to fraction form
    21,048.05/29,046.47 = 11,488.01/x
  3. Step 3: Cross multiply
    21,048.05x = 29,046.47 × 11,488.01
  4. Step 4: Simplify right side
    21,048.05x = 333,686,137.82
  5. Step 5: Solve for x
    x = 333,686,137.82/21,048.05
  6. Step 6: Final answer
    x = 15,853.54

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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.