Home / 39,792.16-54,914.52-21,887.92

Finding the Fourth Proportional to 39,792.16, 54,914.52 and 21,887.92

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Solution

The fourth proportional to 39,792.16, 54,914.52 and 21,887.92 is: 30,206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,792.16 : 54,914.52 = 21,887.92 : x
  2. Step 2: Convert to fraction form
    39,792.16/54,914.52 = 21,887.92/x
  3. Step 3: Cross multiply
    39,792.16x = 54,914.52 × 21,887.92
  4. Step 4: Simplify right side
    39,792.16x = 1,201,964,620.60
  5. Step 5: Solve for x
    x = 1,201,964,620.60/39,792.16
  6. Step 6: Final answer
    x = 30,206.07

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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.