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Finding the Fourth Proportional to 40,019.84, 59,996.04 and 18,947.64

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Solution

The fourth proportional to 40,019.84, 59,996.04 and 18,947.64 is: 28,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,019.84 : 59,996.04 = 18,947.64 : x
  2. Step 2: Convert to fraction form
    40,019.84/59,996.04 = 18,947.64/x
  3. Step 3: Cross multiply
    40,019.84x = 59,996.04 × 18,947.64
  4. Step 4: Simplify right side
    40,019.84x = 1,136,783,367.35
  5. Step 5: Solve for x
    x = 1,136,783,367.35/40,019.84
  6. Step 6: Final answer
    x = 28,405.50

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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.