Home / 21,843.78-30,113.88-18,473.04

Finding the Fourth Proportional to 21,843.78, 30,113.88 and 18,473.04

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Solution

The fourth proportional to 21,843.78, 30,113.88 and 18,473.04 is: 25,466.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.78 : 30,113.88 = 18,473.04 : x
  2. Step 2: Convert to fraction form
    21,843.78/30,113.88 = 18,473.04/x
  3. Step 3: Cross multiply
    21,843.78x = 30,113.88 × 18,473.04
  4. Step 4: Simplify right side
    21,843.78x = 556,294,909.80
  5. Step 5: Solve for x
    x = 556,294,909.80/21,843.78
  6. Step 6: Final answer
    x = 25,466.97

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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.