Home / 43,302.94-64,958.55-12,138.10

Finding the Fourth Proportional to 43,302.94, 64,958.55 and 12,138.10

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Solution

The fourth proportional to 43,302.94, 64,958.55 and 12,138.10 is: 18,208.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,302.94 : 64,958.55 = 12,138.10 : x
  2. Step 2: Convert to fraction form
    43,302.94/64,958.55 = 12,138.10/x
  3. Step 3: Cross multiply
    43,302.94x = 64,958.55 × 12,138.10
  4. Step 4: Simplify right side
    43,302.94x = 788,472,990.27
  5. Step 5: Solve for x
    x = 788,472,990.27/43,302.94
  6. Step 6: Final answer
    x = 18,208.30

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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.