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Finding the Fourth Proportional to 30,008.68, 44,978.46 and 19,602.28

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Solution

The fourth proportional to 30,008.68, 44,978.46 and 19,602.28 is: 29,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.68 : 44,978.46 = 19,602.28 : x
  2. Step 2: Convert to fraction form
    30,008.68/44,978.46 = 19,602.28/x
  3. Step 3: Cross multiply
    30,008.68x = 44,978.46 × 19,602.28
  4. Step 4: Simplify right side
    30,008.68x = 881,680,366.89
  5. Step 5: Solve for x
    x = 881,680,366.89/30,008.68
  6. Step 6: Final answer
    x = 29,380.84

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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.