Home / 21,514.03-29,689.26-11,955.47

Finding the Fourth Proportional to 21,514.03, 29,689.26 and 11,955.47

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Solution

The fourth proportional to 21,514.03, 29,689.26 and 11,955.47 is: 16,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.03 : 29,689.26 = 11,955.47 : x
  2. Step 2: Convert to fraction form
    21,514.03/29,689.26 = 11,955.47/x
  3. Step 3: Cross multiply
    21,514.03x = 29,689.26 × 11,955.47
  4. Step 4: Simplify right side
    21,514.03x = 354,949,057.25
  5. Step 5: Solve for x
    x = 354,949,057.25/21,514.03
  6. Step 6: Final answer
    x = 16,498.50

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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.