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Finding the Fourth Proportional to 40,994.40, 61,520.40 and 17,637.60

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Solution

The fourth proportional to 40,994.40, 61,520.40 and 17,637.60 is: 26,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,994.40 : 61,520.40 = 17,637.60 : x
  2. Step 2: Convert to fraction form
    40,994.40/61,520.40 = 17,637.60/x
  3. Step 3: Cross multiply
    40,994.40x = 61,520.40 × 17,637.60
  4. Step 4: Simplify right side
    40,994.40x = 1,085,072,207.04
  5. Step 5: Solve for x
    x = 1,085,072,207.04/40,994.40
  6. Step 6: Final answer
    x = 26,468.79

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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.