Home / 21,323.94-29,419.11-12,366.42

Finding the Fourth Proportional to 21,323.94, 29,419.11 and 12,366.42

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Solution

The fourth proportional to 21,323.94, 29,419.11 and 12,366.42 is: 17,061.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.94 : 29,419.11 = 12,366.42 : x
  2. Step 2: Convert to fraction form
    21,323.94/29,419.11 = 12,366.42/x
  3. Step 3: Cross multiply
    21,323.94x = 29,419.11 × 12,366.42
  4. Step 4: Simplify right side
    21,323.94x = 363,809,070.29
  5. Step 5: Solve for x
    x = 363,809,070.29/21,323.94
  6. Step 6: Final answer
    x = 17,061.06

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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.