Home / 28,998.86-40,018.55-16,906.50

Finding the Fourth Proportional to 28,998.86, 40,018.55 and 16,906.50

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Solution

The fourth proportional to 28,998.86, 40,018.55 and 16,906.50 is: 23,331.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.86 : 40,018.55 = 16,906.50 : x
  2. Step 2: Convert to fraction form
    28,998.86/40,018.55 = 16,906.50/x
  3. Step 3: Cross multiply
    28,998.86x = 40,018.55 × 16,906.50
  4. Step 4: Simplify right side
    28,998.86x = 676,573,531.04
  5. Step 5: Solve for x
    x = 676,573,531.04/28,998.86
  6. Step 6: Final answer
    x = 23,331.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.