Home / 38,966.88-53,771.04-21,975.30

Finding the Fourth Proportional to 38,966.88, 53,771.04 and 21,975.30

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Solution

The fourth proportional to 38,966.88, 53,771.04 and 21,975.30 is: 30,324.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,966.88 : 53,771.04 = 21,975.30 : x
  2. Step 2: Convert to fraction form
    38,966.88/53,771.04 = 21,975.30/x
  3. Step 3: Cross multiply
    38,966.88x = 53,771.04 × 21,975.30
  4. Step 4: Simplify right side
    38,966.88x = 1,181,634,735.31
  5. Step 5: Solve for x
    x = 1,181,634,735.31/38,966.88
  6. Step 6: Final answer
    x = 30,324.08

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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.