Home / 21,552.22-29,732.25-15,574.42

Finding the Fourth Proportional to 21,552.22, 29,732.25 and 15,574.42

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Solution

The fourth proportional to 21,552.22, 29,732.25 and 15,574.42 is: 21,485.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.22 : 29,732.25 = 15,574.42 : x
  2. Step 2: Convert to fraction form
    21,552.22/29,732.25 = 15,574.42/x
  3. Step 3: Cross multiply
    21,552.22x = 29,732.25 × 15,574.42
  4. Step 4: Simplify right side
    21,552.22x = 463,062,549.05
  5. Step 5: Solve for x
    x = 463,062,549.05/21,552.22
  6. Step 6: Final answer
    x = 21,485.61

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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.