Home / 39,736.31-54,836.72-21,831.67

Finding the Fourth Proportional to 39,736.31, 54,836.72 and 21,831.67

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Solution

The fourth proportional to 39,736.31, 54,836.72 and 21,831.67 is: 30,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,736.31 : 54,836.72 = 21,831.67 : x
  2. Step 2: Convert to fraction form
    39,736.31/54,836.72 = 21,831.67/x
  3. Step 3: Cross multiply
    39,736.31x = 54,836.72 × 21,831.67
  4. Step 4: Simplify right side
    39,736.31x = 1,197,177,092.41
  5. Step 5: Solve for x
    x = 1,197,177,092.41/39,736.31
  6. Step 6: Final answer
    x = 30,128.04

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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.