Home / 43,178.87-64,770.63-13,599.02

Finding the Fourth Proportional to 43,178.87, 64,770.63 and 13,599.02

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Solution

The fourth proportional to 43,178.87, 64,770.63 and 13,599.02 is: 20,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,178.87 : 64,770.63 = 13,599.02 : x
  2. Step 2: Convert to fraction form
    43,178.87/64,770.63 = 13,599.02/x
  3. Step 3: Cross multiply
    43,178.87x = 64,770.63 × 13,599.02
  4. Step 4: Simplify right side
    43,178.87x = 880,816,768.93
  5. Step 5: Solve for x
    x = 880,816,768.93/43,178.87
  6. Step 6: Final answer
    x = 20,399.26

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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.