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Finding the Fourth Proportional to 22,352.80, 33,490.80 and 11,807.20

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Solution

The fourth proportional to 22,352.80, 33,490.80 and 11,807.20 is: 17,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,352.80 : 33,490.80 = 11,807.20 : x
  2. Step 2: Convert to fraction form
    22,352.80/33,490.80 = 11,807.20/x
  3. Step 3: Cross multiply
    22,352.80x = 33,490.80 × 11,807.20
  4. Step 4: Simplify right side
    22,352.80x = 395,432,573.76
  5. Step 5: Solve for x
    x = 395,432,573.76/22,352.80
  6. Step 6: Final answer
    x = 17,690.52

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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.