Home / 40,668.04-60,992.88-20,657.32

Finding the Fourth Proportional to 40,668.04, 60,992.88 and 20,657.32

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Solution

The fourth proportional to 40,668.04, 60,992.88 and 20,657.32 is: 30,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,668.04 : 60,992.88 = 20,657.32 : x
  2. Step 2: Convert to fraction form
    40,668.04/60,992.88 = 20,657.32/x
  3. Step 3: Cross multiply
    40,668.04x = 60,992.88 × 20,657.32
  4. Step 4: Simplify right side
    40,668.04x = 1,259,949,439.88
  5. Step 5: Solve for x
    x = 1,259,949,439.88/40,668.04
  6. Step 6: Final answer
    x = 30,981.32

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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.