Home / 21,625.24-29,779.66-20,714.80

Finding the Fourth Proportional to 21,625.24, 29,779.66 and 20,714.80

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Solution

The fourth proportional to 21,625.24, 29,779.66 and 20,714.80 is: 28,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.24 : 29,779.66 = 20,714.80 : x
  2. Step 2: Convert to fraction form
    21,625.24/29,779.66 = 20,714.80/x
  3. Step 3: Cross multiply
    21,625.24x = 29,779.66 × 20,714.80
  4. Step 4: Simplify right side
    21,625.24x = 616,879,700.97
  5. Step 5: Solve for x
    x = 616,879,700.97/21,625.24
  6. Step 6: Final answer
    x = 28,525.91

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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.