Home / 20,346.32-30,503.04-8,651.36

Finding the Fourth Proportional to 20,346.32, 30,503.04 and 8,651.36

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Solution

The fourth proportional to 20,346.32, 30,503.04 and 8,651.36 is: 12,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.32 : 30,503.04 = 8,651.36 : x
  2. Step 2: Convert to fraction form
    20,346.32/30,503.04 = 8,651.36/x
  3. Step 3: Cross multiply
    20,346.32x = 30,503.04 × 8,651.36
  4. Step 4: Simplify right side
    20,346.32x = 263,892,780.13
  5. Step 5: Solve for x
    x = 263,892,780.13/20,346.32
  6. Step 6: Final answer
    x = 12,970.05

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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.