Home / 21,514.16-32,155.90-19,400.97

Finding the Fourth Proportional to 21,514.16, 32,155.90 and 19,400.97

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Solution

The fourth proportional to 21,514.16, 32,155.90 and 19,400.97 is: 28,997.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.16 : 32,155.90 = 19,400.97 : x
  2. Step 2: Convert to fraction form
    21,514.16/32,155.90 = 19,400.97/x
  3. Step 3: Cross multiply
    21,514.16x = 32,155.90 × 19,400.97
  4. Step 4: Simplify right side
    21,514.16x = 623,855,651.22
  5. Step 5: Solve for x
    x = 623,855,651.22/21,514.16
  6. Step 6: Final answer
    x = 28,997.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.