Home / 21,252.64-29,329.68-11,821.04

Finding the Fourth Proportional to 21,252.64, 29,329.68 and 11,821.04

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Solution

The fourth proportional to 21,252.64, 29,329.68 and 11,821.04 is: 16,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.64 : 29,329.68 = 11,821.04 : x
  2. Step 2: Convert to fraction form
    21,252.64/29,329.68 = 11,821.04/x
  3. Step 3: Cross multiply
    21,252.64x = 29,329.68 × 11,821.04
  4. Step 4: Simplify right side
    21,252.64x = 346,707,320.47
  5. Step 5: Solve for x
    x = 346,707,320.47/21,252.64
  6. Step 6: Final answer
    x = 16,313.61

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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.