Home / 39,831.23-54,968.66-21,927.90

Finding the Fourth Proportional to 39,831.23, 54,968.66 and 21,927.90

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Solution

The fourth proportional to 39,831.23, 54,968.66 and 21,927.90 is: 30,261.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.23 : 54,968.66 = 21,927.90 : x
  2. Step 2: Convert to fraction form
    39,831.23/54,968.66 = 21,927.90/x
  3. Step 3: Cross multiply
    39,831.23x = 54,968.66 × 21,927.90
  4. Step 4: Simplify right side
    39,831.23x = 1,205,347,279.61
  5. Step 5: Solve for x
    x = 1,205,347,279.61/39,831.23
  6. Step 6: Final answer
    x = 30,261.36

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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.