Home / 21,257.48-29,335.46-11,825.80

Finding the Fourth Proportional to 21,257.48, 29,335.46 and 11,825.80

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Solution

The fourth proportional to 21,257.48, 29,335.46 and 11,825.80 is: 16,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257.48 : 29,335.46 = 11,825.80 : x
  2. Step 2: Convert to fraction form
    21,257.48/29,335.46 = 11,825.80/x
  3. Step 3: Cross multiply
    21,257.48x = 29,335.46 × 11,825.80
  4. Step 4: Simplify right side
    21,257.48x = 346,915,282.87
  5. Step 5: Solve for x
    x = 346,915,282.87/21,257.48
  6. Step 6: Final answer
    x = 16,319.68

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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.