Home / 39,839.16-59,756.58-12,135

Finding the Fourth Proportional to 39,839.16, 59,756.58 and 12,135

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Solution

The fourth proportional to 39,839.16, 59,756.58 and 12,135 is: 18,201.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,839.16 : 59,756.58 = 12,135 : x
  2. Step 2: Convert to fraction form
    39,839.16/59,756.58 = 12,135/x
  3. Step 3: Cross multiply
    39,839.16x = 59,756.58 × 12,135
  4. Step 4: Simplify right side
    39,839.16x = 725,146,098.30
  5. Step 5: Solve for x
    x = 725,146,098.30/39,839.16
  6. Step 6: Final answer
    x = 18,201.84

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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.