Home / 39,153.96-58,724.19-12,859.20

Finding the Fourth Proportional to 39,153.96, 58,724.19 and 12,859.20

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Solution

The fourth proportional to 39,153.96, 58,724.19 and 12,859.20 is: 19,286.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,153.96 : 58,724.19 = 12,859.20 : x
  2. Step 2: Convert to fraction form
    39,153.96/58,724.19 = 12,859.20/x
  3. Step 3: Cross multiply
    39,153.96x = 58,724.19 × 12,859.20
  4. Step 4: Simplify right side
    39,153.96x = 755,146,104.05
  5. Step 5: Solve for x
    x = 755,146,104.05/39,153.96
  6. Step 6: Final answer
    x = 19,286.58

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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.