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Finding the Fourth Proportional to 39,998.56, 59,997.03 and 10,415.74

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Solution

The fourth proportional to 39,998.56, 59,997.03 and 10,415.74 is: 15,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,998.56 : 59,997.03 = 10,415.74 : x
  2. Step 2: Convert to fraction form
    39,998.56/59,997.03 = 10,415.74/x
  3. Step 3: Cross multiply
    39,998.56x = 59,997.03 × 10,415.74
  4. Step 4: Simplify right side
    39,998.56x = 624,913,465.25
  5. Step 5: Solve for x
    x = 624,913,465.25/39,998.56
  6. Step 6: Final answer
    x = 15,623.40

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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.