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Finding the Fourth Proportional to 20,271.52, 27,994.02 and 19,167.10

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Solution

The fourth proportional to 20,271.52, 27,994.02 and 19,167.10 is: 26,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.52 : 27,994.02 = 19,167.10 : x
  2. Step 2: Convert to fraction form
    20,271.52/27,994.02 = 19,167.10/x
  3. Step 3: Cross multiply
    20,271.52x = 27,994.02 × 19,167.10
  4. Step 4: Simplify right side
    20,271.52x = 536,564,180.74
  5. Step 5: Solve for x
    x = 536,564,180.74/20,271.52
  6. Step 6: Final answer
    x = 26,468.87

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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.