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Finding the Fourth Proportional to 40,566.69, 60,855.84 and 12,489.12

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Solution

The fourth proportional to 40,566.69, 60,855.84 and 12,489.12 is: 18,735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,566.69 : 60,855.84 = 12,489.12 : x
  2. Step 2: Convert to fraction form
    40,566.69/60,855.84 = 12,489.12/x
  3. Step 3: Cross multiply
    40,566.69x = 60,855.84 × 12,489.12
  4. Step 4: Simplify right side
    40,566.69x = 760,035,888.46
  5. Step 5: Solve for x
    x = 760,035,888.46/40,566.69
  6. Step 6: Final answer
    x = 18,735.47

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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.