Home / 20,225.39-30,335.25-8,535.88

Finding the Fourth Proportional to 20,225.39, 30,335.25 and 8,535.88

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Solution

The fourth proportional to 20,225.39, 30,335.25 and 8,535.88 is: 12,802.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.39 : 30,335.25 = 8,535.88 : x
  2. Step 2: Convert to fraction form
    20,225.39/30,335.25 = 8,535.88/x
  3. Step 3: Cross multiply
    20,225.39x = 30,335.25 × 8,535.88
  4. Step 4: Simplify right side
    20,225.39x = 258,937,902.09
  5. Step 5: Solve for x
    x = 258,937,902.09/20,225.39
  6. Step 6: Final answer
    x = 12,802.62

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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.