Home / 38,940.28-53,737.54-21,035.27

Finding the Fourth Proportional to 38,940.28, 53,737.54 and 21,035.27

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Solution

The fourth proportional to 38,940.28, 53,737.54 and 21,035.27 is: 29,028.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,940.28 : 53,737.54 = 21,035.27 : x
  2. Step 2: Convert to fraction form
    38,940.28/53,737.54 = 21,035.27/x
  3. Step 3: Cross multiply
    38,940.28x = 53,737.54 × 21,035.27
  4. Step 4: Simplify right side
    38,940.28x = 1,130,383,744.79
  5. Step 5: Solve for x
    x = 1,130,383,744.79/38,940.28
  6. Step 6: Final answer
    x = 29,028.65

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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.