Home / 39,706.08-54,796.38-21,800.88

Finding the Fourth Proportional to 39,706.08, 54,796.38 and 21,800.88

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Solution

The fourth proportional to 39,706.08, 54,796.38 and 21,800.88 is: 30,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,706.08 : 54,796.38 = 21,800.88 : x
  2. Step 2: Convert to fraction form
    39,706.08/54,796.38 = 21,800.88/x
  3. Step 3: Cross multiply
    39,706.08x = 54,796.38 × 21,800.88
  4. Step 4: Simplify right side
    39,706.08x = 1,194,609,304.81
  5. Step 5: Solve for x
    x = 1,194,609,304.81/39,706.08
  6. Step 6: Final answer
    x = 30,086.31

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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.