Home / 40,669.08-61,009.32-12,591.54

Finding the Fourth Proportional to 40,669.08, 61,009.32 and 12,591.54

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Solution

The fourth proportional to 40,669.08, 61,009.32 and 12,591.54 is: 18,889.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,669.08 : 61,009.32 = 12,591.54 : x
  2. Step 2: Convert to fraction form
    40,669.08/61,009.32 = 12,591.54/x
  3. Step 3: Cross multiply
    40,669.08x = 61,009.32 × 12,591.54
  4. Step 4: Simplify right side
    40,669.08x = 768,201,293.15
  5. Step 5: Solve for x
    x = 768,201,293.15/40,669.08
  6. Step 6: Final answer
    x = 18,889.07

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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.