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Finding the Fourth Proportional to 32,991, 45,528.12 and 18,087

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Solution

The fourth proportional to 32,991, 45,528.12 and 18,087 is: 24,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,991 : 45,528.12 = 18,087 : x
  2. Step 2: Convert to fraction form
    32,991/45,528.12 = 18,087/x
  3. Step 3: Cross multiply
    32,991x = 45,528.12 × 18,087
  4. Step 4: Simplify right side
    32,991x = 823,467,106.44
  5. Step 5: Solve for x
    x = 823,467,106.44/32,991
  6. Step 6: Final answer
    x = 24,960.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.