Home / 39,831.89-54,969.98-21,926.70

Finding the Fourth Proportional to 39,831.89, 54,969.98 and 21,926.70

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Solution

The fourth proportional to 39,831.89, 54,969.98 and 21,926.70 is: 30,259.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.89 : 54,969.98 = 21,926.70 : x
  2. Step 2: Convert to fraction form
    39,831.89/54,969.98 = 21,926.70/x
  3. Step 3: Cross multiply
    39,831.89x = 54,969.98 × 21,926.70
  4. Step 4: Simplify right side
    39,831.89x = 1,205,310,150.83
  5. Step 5: Solve for x
    x = 1,205,310,150.83/39,831.89
  6. Step 6: Final answer
    x = 30,259.93

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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.