Home / 38,964.30-53,757.84-21,966.45

Finding the Fourth Proportional to 38,964.30, 53,757.84 and 21,966.45

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Solution

The fourth proportional to 38,964.30, 53,757.84 and 21,966.45 is: 30,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,964.30 : 53,757.84 = 21,966.45 : x
  2. Step 2: Convert to fraction form
    38,964.30/53,757.84 = 21,966.45/x
  3. Step 3: Cross multiply
    38,964.30x = 53,757.84 × 21,966.45
  4. Step 4: Simplify right side
    38,964.30x = 1,180,868,904.47
  5. Step 5: Solve for x
    x = 1,180,868,904.47/38,964.30
  6. Step 6: Final answer
    x = 30,306.43

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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.