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Finding the Fourth Proportional to 22,946.80, 34,420.20 and 19,228.90

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Solution

The fourth proportional to 22,946.80, 34,420.20 and 19,228.90 is: 28,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,946.80 : 34,420.20 = 19,228.90 : x
  2. Step 2: Convert to fraction form
    22,946.80/34,420.20 = 19,228.90/x
  3. Step 3: Cross multiply
    22,946.80x = 34,420.20 × 19,228.90
  4. Step 4: Simplify right side
    22,946.80x = 661,862,583.78
  5. Step 5: Solve for x
    x = 661,862,583.78/22,946.80
  6. Step 6: Final answer
    x = 28,843.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.