Home / 21,366.83-29,473.91-12,863.05

Finding the Fourth Proportional to 21,366.83, 29,473.91 and 12,863.05

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Solution

The fourth proportional to 21,366.83, 29,473.91 and 12,863.05 is: 17,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366.83 : 29,473.91 = 12,863.05 : x
  2. Step 2: Convert to fraction form
    21,366.83/29,473.91 = 12,863.05/x
  3. Step 3: Cross multiply
    21,366.83x = 29,473.91 × 12,863.05
  4. Step 4: Simplify right side
    21,366.83x = 379,124,288.26
  5. Step 5: Solve for x
    x = 379,124,288.26/21,366.83
  6. Step 6: Final answer
    x = 17,743.59

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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.