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Finding the Fourth Proportional to 22,041.66, 30,420.27 and 13,659.42

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Solution

The fourth proportional to 22,041.66, 30,420.27 and 13,659.42 is: 18,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,041.66 : 30,420.27 = 13,659.42 : x
  2. Step 2: Convert to fraction form
    22,041.66/30,420.27 = 13,659.42/x
  3. Step 3: Cross multiply
    22,041.66x = 30,420.27 × 13,659.42
  4. Step 4: Simplify right side
    22,041.66x = 415,523,244.44
  5. Step 5: Solve for x
    x = 415,523,244.44/22,041.66
  6. Step 6: Final answer
    x = 18,851.72

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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.