Home / 40,305.09-60,464.16-12,218.55

Finding the Fourth Proportional to 40,305.09, 60,464.16 and 12,218.55

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Solution

The fourth proportional to 40,305.09, 60,464.16 and 12,218.55 is: 18,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,305.09 : 60,464.16 = 12,218.55 : x
  2. Step 2: Convert to fraction form
    40,305.09/60,464.16 = 12,218.55/x
  3. Step 3: Cross multiply
    40,305.09x = 60,464.16 × 12,218.55
  4. Step 4: Simplify right side
    40,305.09x = 738,784,362.17
  5. Step 5: Solve for x
    x = 738,784,362.17/40,305.09
  6. Step 6: Final answer
    x = 18,329.80

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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.