Home / 38,922.17-58,391.78-12,629.57

Finding the Fourth Proportional to 38,922.17, 58,391.78 and 12,629.57

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Solution

The fourth proportional to 38,922.17, 58,391.78 and 12,629.57 is: 18,947.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,922.17 : 58,391.78 = 12,629.57 : x
  2. Step 2: Convert to fraction form
    38,922.17/58,391.78 = 12,629.57/x
  3. Step 3: Cross multiply
    38,922.17x = 58,391.78 × 12,629.57
  4. Step 4: Simplify right side
    38,922.17x = 737,462,717.83
  5. Step 5: Solve for x
    x = 737,462,717.83/38,922.17
  6. Step 6: Final answer
    x = 18,947.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.