Home / 21,454.66-29,608.52-12,376.66

Finding the Fourth Proportional to 21,454.66, 29,608.52 and 12,376.66

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Solution

The fourth proportional to 21,454.66, 29,608.52 and 12,376.66 is: 17,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.66 : 29,608.52 = 12,376.66 : x
  2. Step 2: Convert to fraction form
    21,454.66/29,608.52 = 12,376.66/x
  3. Step 3: Cross multiply
    21,454.66x = 29,608.52 × 12,376.66
  4. Step 4: Simplify right side
    21,454.66x = 366,454,585.14
  5. Step 5: Solve for x
    x = 366,454,585.14/21,454.66
  6. Step 6: Final answer
    x = 17,080.42

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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.