Home / 20,214.77-30,326.36-8,528.09

Finding the Fourth Proportional to 20,214.77, 30,326.36 and 8,528.09

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Solution

The fourth proportional to 20,214.77, 30,326.36 and 8,528.09 is: 12,793.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.77 : 30,326.36 = 8,528.09 : x
  2. Step 2: Convert to fraction form
    20,214.77/30,326.36 = 8,528.09/x
  3. Step 3: Cross multiply
    20,214.77x = 30,326.36 × 8,528.09
  4. Step 4: Simplify right side
    20,214.77x = 258,625,927.45
  5. Step 5: Solve for x
    x = 258,625,927.45/20,214.77
  6. Step 6: Final answer
    x = 12,793.91

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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.