Home / 39,062.68-53,902.64-21,831.86

Finding the Fourth Proportional to 39,062.68, 53,902.64 and 21,831.86

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Solution

The fourth proportional to 39,062.68, 53,902.64 and 21,831.86 is: 30,125.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,062.68 : 53,902.64 = 21,831.86 : x
  2. Step 2: Convert to fraction form
    39,062.68/53,902.64 = 21,831.86/x
  3. Step 3: Cross multiply
    39,062.68x = 53,902.64 × 21,831.86
  4. Step 4: Simplify right side
    39,062.68x = 1,176,795,079.45
  5. Step 5: Solve for x
    x = 1,176,795,079.45/39,062.68
  6. Step 6: Final answer
    x = 30,125.82

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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.