Home / 43,179.62-64,771.75-13,599.77

Finding the Fourth Proportional to 43,179.62, 64,771.75 and 13,599.77

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Solution

The fourth proportional to 43,179.62, 64,771.75 and 13,599.77 is: 20,400.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,179.62 : 64,771.75 = 13,599.77 : x
  2. Step 2: Convert to fraction form
    43,179.62/64,771.75 = 13,599.77/x
  3. Step 3: Cross multiply
    43,179.62x = 64,771.75 × 13,599.77
  4. Step 4: Simplify right side
    43,179.62x = 880,880,959.98
  5. Step 5: Solve for x
    x = 880,880,959.98/43,179.62
  6. Step 6: Final answer
    x = 20,400.39

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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.