Home / 21,550.68-29,744.02-13,488.08

Finding the Fourth Proportional to 21,550.68, 29,744.02 and 13,488.08

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Solution

The fourth proportional to 21,550.68, 29,744.02 and 13,488.08 is: 18,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.68 : 29,744.02 = 13,488.08 : x
  2. Step 2: Convert to fraction form
    21,550.68/29,744.02 = 13,488.08/x
  3. Step 3: Cross multiply
    21,550.68x = 29,744.02 × 13,488.08
  4. Step 4: Simplify right side
    21,550.68x = 401,189,589.42
  5. Step 5: Solve for x
    x = 401,189,589.42/21,550.68
  6. Step 6: Final answer
    x = 18,616.10

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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.