Home / 20,332.50-30,498.75-6,481.50

Finding the Fourth Proportional to 20,332.50, 30,498.75 and 6,481.50

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Solution

The fourth proportional to 20,332.50, 30,498.75 and 6,481.50 is: 9,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.50 : 30,498.75 = 6,481.50 : x
  2. Step 2: Convert to fraction form
    20,332.50/30,498.75 = 6,481.50/x
  3. Step 3: Cross multiply
    20,332.50x = 30,498.75 × 6,481.50
  4. Step 4: Simplify right side
    20,332.50x = 197,677,648.13
  5. Step 5: Solve for x
    x = 197,677,648.13/20,332.50
  6. Step 6: Final answer
    x = 9,722.25

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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.