Home / 38,391.74-52,982.22-21,396

Finding the Fourth Proportional to 38,391.74, 52,982.22 and 21,396

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Solution

The fourth proportional to 38,391.74, 52,982.22 and 21,396 is: 29,527.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,391.74 : 52,982.22 = 21,396 : x
  2. Step 2: Convert to fraction form
    38,391.74/52,982.22 = 21,396/x
  3. Step 3: Cross multiply
    38,391.74x = 52,982.22 × 21,396
  4. Step 4: Simplify right side
    38,391.74x = 1,133,607,579.12
  5. Step 5: Solve for x
    x = 1,133,607,579.12/38,391.74
  6. Step 6: Final answer
    x = 29,527.38

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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.