Home / 21,548.88-29,733.80-11,987.52

Finding the Fourth Proportional to 21,548.88, 29,733.80 and 11,987.52

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Solution

The fourth proportional to 21,548.88, 29,733.80 and 11,987.52 is: 16,540.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.88 : 29,733.80 = 11,987.52 : x
  2. Step 2: Convert to fraction form
    21,548.88/29,733.80 = 11,987.52/x
  3. Step 3: Cross multiply
    21,548.88x = 29,733.80 × 11,987.52
  4. Step 4: Simplify right side
    21,548.88x = 356,434,522.18
  5. Step 5: Solve for x
    x = 356,434,522.18/21,548.88
  6. Step 6: Final answer
    x = 16,540.74

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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.