Home / 39,519.09-59,284.31-12,856.32

Finding the Fourth Proportional to 39,519.09, 59,284.31 and 12,856.32

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Solution

The fourth proportional to 39,519.09, 59,284.31 and 12,856.32 is: 19,286.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,519.09 : 59,284.31 = 12,856.32 : x
  2. Step 2: Convert to fraction form
    39,519.09/59,284.31 = 12,856.32/x
  3. Step 3: Cross multiply
    39,519.09x = 59,284.31 × 12,856.32
  4. Step 4: Simplify right side
    39,519.09x = 762,177,996.06
  5. Step 5: Solve for x
    x = 762,177,996.06/39,519.09
  6. Step 6: Final answer
    x = 19,286.32

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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.