Home / 39,364.46-54,320.22-22,139.40

Finding the Fourth Proportional to 39,364.46, 54,320.22 and 22,139.40

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Solution

The fourth proportional to 39,364.46, 54,320.22 and 22,139.40 is: 30,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,364.46 : 54,320.22 = 22,139.40 : x
  2. Step 2: Convert to fraction form
    39,364.46/54,320.22 = 22,139.40/x
  3. Step 3: Cross multiply
    39,364.46x = 54,320.22 × 22,139.40
  4. Step 4: Simplify right side
    39,364.46x = 1,202,617,078.67
  5. Step 5: Solve for x
    x = 1,202,617,078.67/39,364.46
  6. Step 6: Final answer
    x = 30,550.83

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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.