Home / 39,928.16-55,098.96-22,920.50

Finding the Fourth Proportional to 39,928.16, 55,098.96 and 22,920.50

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Solution

The fourth proportional to 39,928.16, 55,098.96 and 22,920.50 is: 31,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,928.16 : 55,098.96 = 22,920.50 : x
  2. Step 2: Convert to fraction form
    39,928.16/55,098.96 = 22,920.50/x
  3. Step 3: Cross multiply
    39,928.16x = 55,098.96 × 22,920.50
  4. Step 4: Simplify right side
    39,928.16x = 1,262,895,712.68
  5. Step 5: Solve for x
    x = 1,262,895,712.68/39,928.16
  6. Step 6: Final answer
    x = 31,629.20

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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.