Home / 36,284.29-54,422.35-12,587.47

Finding the Fourth Proportional to 36,284.29, 54,422.35 and 12,587.47

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Solution

The fourth proportional to 36,284.29, 54,422.35 and 12,587.47 is: 18,879.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,284.29 : 54,422.35 = 12,587.47 : x
  2. Step 2: Convert to fraction form
    36,284.29/54,422.35 = 12,587.47/x
  3. Step 3: Cross multiply
    36,284.29x = 54,422.35 × 12,587.47
  4. Step 4: Simplify right side
    36,284.29x = 685,039,530.43
  5. Step 5: Solve for x
    x = 685,039,530.43/36,284.29
  6. Step 6: Final answer
    x = 18,879.78

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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.