Home / 21,048.32-29,046.78-11,617.50

Finding the Fourth Proportional to 21,048.32, 29,046.78 and 11,617.50

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Solution

The fourth proportional to 21,048.32, 29,046.78 and 11,617.50 is: 16,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.32 : 29,046.78 = 11,617.50 : x
  2. Step 2: Convert to fraction form
    21,048.32/29,046.78 = 11,617.50/x
  3. Step 3: Cross multiply
    21,048.32x = 29,046.78 × 11,617.50
  4. Step 4: Simplify right side
    21,048.32x = 337,450,966.65
  5. Step 5: Solve for x
    x = 337,450,966.65/21,048.32
  6. Step 6: Final answer
    x = 16,032.20

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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.