Home / 39,831.35-54,967.82-21,927.11

Finding the Fourth Proportional to 39,831.35, 54,967.82 and 21,927.11

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Solution

The fourth proportional to 39,831.35, 54,967.82 and 21,927.11 is: 30,259.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.35 : 54,967.82 = 21,927.11 : x
  2. Step 2: Convert to fraction form
    39,831.35/54,967.82 = 21,927.11/x
  3. Step 3: Cross multiply
    39,831.35x = 54,967.82 × 21,927.11
  4. Step 4: Simplify right side
    39,831.35x = 1,205,285,051.13
  5. Step 5: Solve for x
    x = 1,205,285,051.13/39,831.35
  6. Step 6: Final answer
    x = 30,259.71

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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.