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Finding the Fourth Proportional to 40,395.41, 60,620.80 and 14,100.15

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Solution

The fourth proportional to 40,395.41, 60,620.80 and 14,100.15 is: 21,159.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,395.41 : 60,620.80 = 14,100.15 : x
  2. Step 2: Convert to fraction form
    40,395.41/60,620.80 = 14,100.15/x
  3. Step 3: Cross multiply
    40,395.41x = 60,620.80 × 14,100.15
  4. Step 4: Simplify right side
    40,395.41x = 854,762,302.62
  5. Step 5: Solve for x
    x = 854,762,302.62/40,395.41
  6. Step 6: Final answer
    x = 21,159.89

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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.