Home / 39,831.54-54,968.49-21,927.12

Finding the Fourth Proportional to 39,831.54, 54,968.49 and 21,927.12

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Solution

The fourth proportional to 39,831.54, 54,968.49 and 21,927.12 is: 30,259.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.54 : 54,968.49 = 21,927.12 : x
  2. Step 2: Convert to fraction form
    39,831.54/54,968.49 = 21,927.12/x
  3. Step 3: Cross multiply
    39,831.54x = 54,968.49 × 21,927.12
  4. Step 4: Simplify right side
    39,831.54x = 1,205,300,676.45
  5. Step 5: Solve for x
    x = 1,205,300,676.45/39,831.54
  6. Step 6: Final answer
    x = 30,259.96

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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.