Home / 38,831.42-53,586.88-21,838.52

Finding the Fourth Proportional to 38,831.42, 53,586.88 and 21,838.52

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Solution

The fourth proportional to 38,831.42, 53,586.88 and 21,838.52 is: 30,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,831.42 : 53,586.88 = 21,838.52 : x
  2. Step 2: Convert to fraction form
    38,831.42/53,586.88 = 21,838.52/x
  3. Step 3: Cross multiply
    38,831.42x = 53,586.88 × 21,838.52
  4. Step 4: Simplify right side
    38,831.42x = 1,170,258,150.62
  5. Step 5: Solve for x
    x = 1,170,258,150.62/38,831.42
  6. Step 6: Final answer
    x = 30,136.89

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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.