Home / 38,391.73-52,981.46-21,397.72

Finding the Fourth Proportional to 38,391.73, 52,981.46 and 21,397.72

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Solution

The fourth proportional to 38,391.73, 52,981.46 and 21,397.72 is: 29,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,391.73 : 52,981.46 = 21,397.72 : x
  2. Step 2: Convert to fraction form
    38,391.73/52,981.46 = 21,397.72/x
  3. Step 3: Cross multiply
    38,391.73x = 52,981.46 × 21,397.72
  4. Step 4: Simplify right side
    38,391.73x = 1,133,682,446.27
  5. Step 5: Solve for x
    x = 1,133,682,446.27/38,391.73
  6. Step 6: Final answer
    x = 29,529.34

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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.