Home / 39,920.91-55,094.75-29,831.83

Finding the Fourth Proportional to 39,920.91, 55,094.75 and 29,831.83

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Solution

The fourth proportional to 39,920.91, 55,094.75 and 29,831.83 is: 41,170.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,920.91 : 55,094.75 = 29,831.83 : x
  2. Step 2: Convert to fraction form
    39,920.91/55,094.75 = 29,831.83/x
  3. Step 3: Cross multiply
    39,920.91x = 55,094.75 × 29,831.83
  4. Step 4: Simplify right side
    39,920.91x = 1,643,577,135.60
  5. Step 5: Solve for x
    x = 1,643,577,135.60/39,920.91
  6. Step 6: Final answer
    x = 41,170.84

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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.