Home / 21,244.12-29,317.52-11,813.28

Finding the Fourth Proportional to 21,244.12, 29,317.52 and 11,813.28

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Solution

The fourth proportional to 21,244.12, 29,317.52 and 11,813.28 is: 16,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.12 : 29,317.52 = 11,813.28 : x
  2. Step 2: Convert to fraction form
    21,244.12/29,317.52 = 11,813.28/x
  3. Step 3: Cross multiply
    21,244.12x = 29,317.52 × 11,813.28
  4. Step 4: Simplify right side
    21,244.12x = 346,336,072.67
  5. Step 5: Solve for x
    x = 346,336,072.67/21,244.12
  6. Step 6: Final answer
    x = 16,302.68

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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.