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Finding the Fourth Proportional to 32,881.80, 45,358.02 and 18,732

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Solution

The fourth proportional to 32,881.80, 45,358.02 and 18,732 is: 25,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,881.80 : 45,358.02 = 18,732 : x
  2. Step 2: Convert to fraction form
    32,881.80/45,358.02 = 18,732/x
  3. Step 3: Cross multiply
    32,881.80x = 45,358.02 × 18,732
  4. Step 4: Simplify right side
    32,881.80x = 849,646,430.64
  5. Step 5: Solve for x
    x = 849,646,430.64/32,881.80
  6. Step 6: Final answer
    x = 25,839.41

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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.