Home / 39,115.86-58,684.73-12,839.06

Finding the Fourth Proportional to 39,115.86, 58,684.73 and 12,839.06

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Solution

The fourth proportional to 39,115.86, 58,684.73 and 12,839.06 is: 19,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,115.86 : 58,684.73 = 12,839.06 : x
  2. Step 2: Convert to fraction form
    39,115.86/58,684.73 = 12,839.06/x
  3. Step 3: Cross multiply
    39,115.86x = 58,684.73 × 12,839.06
  4. Step 4: Simplify right side
    39,115.86x = 753,456,558.08
  5. Step 5: Solve for x
    x = 753,456,558.08/39,115.86
  6. Step 6: Final answer
    x = 19,262.17

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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.