Home / 28,905.86-43,362.12-11,132.38

Finding the Fourth Proportional to 28,905.86, 43,362.12 and 11,132.38

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Solution

The fourth proportional to 28,905.86, 43,362.12 and 11,132.38 is: 16,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.86 : 43,362.12 = 11,132.38 : x
  2. Step 2: Convert to fraction form
    28,905.86/43,362.12 = 11,132.38/x
  3. Step 3: Cross multiply
    28,905.86x = 43,362.12 × 11,132.38
  4. Step 4: Simplify right side
    28,905.86x = 482,723,693.39
  5. Step 5: Solve for x
    x = 482,723,693.39/28,905.86
  6. Step 6: Final answer
    x = 16,699.85

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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.