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Finding the Fourth Proportional to 29,493.48, 40,742.28 and 20,536.50

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Solution

The fourth proportional to 29,493.48, 40,742.28 and 20,536.50 is: 28,369.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,493.48 : 40,742.28 = 20,536.50 : x
  2. Step 2: Convert to fraction form
    29,493.48/40,742.28 = 20,536.50/x
  3. Step 3: Cross multiply
    29,493.48x = 40,742.28 × 20,536.50
  4. Step 4: Simplify right side
    29,493.48x = 836,703,833.22
  5. Step 5: Solve for x
    x = 836,703,833.22/29,493.48
  6. Step 6: Final answer
    x = 28,369.11

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