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Finding the Fourth Proportional to 30,008.32, 44,978.56 and 18,295.84

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Solution

The fourth proportional to 30,008.32, 44,978.56 and 18,295.84 is: 27,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.32 : 44,978.56 = 18,295.84 : x
  2. Step 2: Convert to fraction form
    30,008.32/44,978.56 = 18,295.84/x
  3. Step 3: Cross multiply
    30,008.32x = 44,978.56 × 18,295.84
  4. Step 4: Simplify right side
    30,008.32x = 822,920,537.19
  5. Step 5: Solve for x
    x = 822,920,537.19/30,008.32
  6. Step 6: Final answer
    x = 27,423.08

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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.