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Finding the Fourth Proportional to 28,396.92, 42,592.41 and 12,602.22

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Solution

The fourth proportional to 28,396.92, 42,592.41 and 12,602.22 is: 18,902.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,396.92 : 42,592.41 = 12,602.22 : x
  2. Step 2: Convert to fraction form
    28,396.92/42,592.41 = 12,602.22/x
  3. Step 3: Cross multiply
    28,396.92x = 42,592.41 × 12,602.22
  4. Step 4: Simplify right side
    28,396.92x = 536,758,921.15
  5. Step 5: Solve for x
    x = 536,758,921.15/28,396.92
  6. Step 6: Final answer
    x = 18,902.01

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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.