Home / 39,327.92-54,270.86-21,423.06

Finding the Fourth Proportional to 39,327.92, 54,270.86 and 21,423.06

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Solution

The fourth proportional to 39,327.92, 54,270.86 and 21,423.06 is: 29,562.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,327.92 : 54,270.86 = 21,423.06 : x
  2. Step 2: Convert to fraction form
    39,327.92/54,270.86 = 21,423.06/x
  3. Step 3: Cross multiply
    39,327.92x = 54,270.86 × 21,423.06
  4. Step 4: Simplify right side
    39,327.92x = 1,162,647,782.92
  5. Step 5: Solve for x
    x = 1,162,647,782.92/39,327.92
  6. Step 6: Final answer
    x = 29,562.91

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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.