Home / 21,244.07-29,318.15-11,812.43

Finding the Fourth Proportional to 21,244.07, 29,318.15 and 11,812.43

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Solution

The fourth proportional to 21,244.07, 29,318.15 and 11,812.43 is: 16,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.07 : 29,318.15 = 11,812.43 : x
  2. Step 2: Convert to fraction form
    21,244.07/29,318.15 = 11,812.43/x
  3. Step 3: Cross multiply
    21,244.07x = 29,318.15 × 11,812.43
  4. Step 4: Simplify right side
    21,244.07x = 346,318,594.60
  5. Step 5: Solve for x
    x = 346,318,594.60/21,244.07
  6. Step 6: Final answer
    x = 16,301.89

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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.