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Finding the Fourth Proportional to 29,066.40, 40,111.20 and 16,490.88

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Solution

The fourth proportional to 29,066.40, 40,111.20 and 16,490.88 is: 22,757.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,066.40 : 40,111.20 = 16,490.88 : x
  2. Step 2: Convert to fraction form
    29,066.40/40,111.20 = 16,490.88/x
  3. Step 3: Cross multiply
    29,066.40x = 40,111.20 × 16,490.88
  4. Step 4: Simplify right side
    29,066.40x = 661,468,985.86
  5. Step 5: Solve for x
    x = 661,468,985.86/29,066.40
  6. Step 6: Final answer
    x = 22,757.17

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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.