Home / 39,282.17-58,928.80-12,619.22

Finding the Fourth Proportional to 39,282.17, 58,928.80 and 12,619.22

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Solution

The fourth proportional to 39,282.17, 58,928.80 and 12,619.22 is: 18,930.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,282.17 : 58,928.80 = 12,619.22 : x
  2. Step 2: Convert to fraction form
    39,282.17/58,928.80 = 12,619.22/x
  3. Step 3: Cross multiply
    39,282.17x = 58,928.80 × 12,619.22
  4. Step 4: Simplify right side
    39,282.17x = 743,635,550.11
  5. Step 5: Solve for x
    x = 743,635,550.11/39,282.17
  6. Step 6: Final answer
    x = 18,930.61

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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.