Home / 39,989.99-59,937.28-18,613.96

Finding the Fourth Proportional to 39,989.99, 59,937.28 and 18,613.96

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Solution

The fourth proportional to 39,989.99, 59,937.28 and 18,613.96 is: 27,898.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,989.99 : 59,937.28 = 18,613.96 : x
  2. Step 2: Convert to fraction form
    39,989.99/59,937.28 = 18,613.96/x
  3. Step 3: Cross multiply
    39,989.99x = 59,937.28 × 18,613.96
  4. Step 4: Simplify right side
    39,989.99x = 1,115,669,936.05
  5. Step 5: Solve for x
    x = 1,115,669,936.05/39,989.99
  6. Step 6: Final answer
    x = 27,898.73

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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.