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Finding the Fourth Proportional to 39,599.66, 59,400.24 and 12,945.66

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Solution

The fourth proportional to 39,599.66, 59,400.24 and 12,945.66 is: 19,418.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,599.66 : 59,400.24 = 12,945.66 : x
  2. Step 2: Convert to fraction form
    39,599.66/59,400.24 = 12,945.66/x
  3. Step 3: Cross multiply
    39,599.66x = 59,400.24 × 12,945.66
  4. Step 4: Simplify right side
    39,599.66x = 768,975,310.96
  5. Step 5: Solve for x
    x = 768,975,310.96/39,599.66
  6. Step 6: Final answer
    x = 19,418.74

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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.