Home / 21,244.76-29,317.40-11,813.12

Finding the Fourth Proportional to 21,244.76, 29,317.40 and 11,813.12

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Solution

The fourth proportional to 21,244.76, 29,317.40 and 11,813.12 is: 16,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.76 : 29,317.40 = 11,813.12 : x
  2. Step 2: Convert to fraction form
    21,244.76/29,317.40 = 11,813.12/x
  3. Step 3: Cross multiply
    21,244.76x = 29,317.40 × 11,813.12
  4. Step 4: Simplify right side
    21,244.76x = 346,329,964.29
  5. Step 5: Solve for x
    x = 346,329,964.29/21,244.76
  6. Step 6: Final answer
    x = 16,301.90

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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.