Home / 21,344.32-29,448.48-13,794.80

Finding the Fourth Proportional to 21,344.32, 29,448.48 and 13,794.80

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Solution

The fourth proportional to 21,344.32, 29,448.48 and 13,794.80 is: 19,032.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.32 : 29,448.48 = 13,794.80 : x
  2. Step 2: Convert to fraction form
    21,344.32/29,448.48 = 13,794.80/x
  3. Step 3: Cross multiply
    21,344.32x = 29,448.48 × 13,794.80
  4. Step 4: Simplify right side
    21,344.32x = 406,235,891.90
  5. Step 5: Solve for x
    x = 406,235,891.90/21,344.32
  6. Step 6: Final answer
    x = 19,032.51

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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.