Home / 21,191.29-29,239.04-12,237.12

Finding the Fourth Proportional to 21,191.29, 29,239.04 and 12,237.12

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Solution

The fourth proportional to 21,191.29, 29,239.04 and 12,237.12 is: 16,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191.29 : 29,239.04 = 12,237.12 : x
  2. Step 2: Convert to fraction form
    21,191.29/29,239.04 = 12,237.12/x
  3. Step 3: Cross multiply
    21,191.29x = 29,239.04 × 12,237.12
  4. Step 4: Simplify right side
    21,191.29x = 357,801,671.76
  5. Step 5: Solve for x
    x = 357,801,671.76/21,191.29
  6. Step 6: Final answer
    x = 16,884.38

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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.