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Finding the Fourth Proportional to 40,381.88, 55,730.01 and 23,390.70

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Solution

The fourth proportional to 40,381.88, 55,730.01 and 23,390.70 is: 32,280.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,381.88 : 55,730.01 = 23,390.70 : x
  2. Step 2: Convert to fraction form
    40,381.88/55,730.01 = 23,390.70/x
  3. Step 3: Cross multiply
    40,381.88x = 55,730.01 × 23,390.70
  4. Step 4: Simplify right side
    40,381.88x = 1,303,563,944.91
  5. Step 5: Solve for x
    x = 1,303,563,944.91/40,381.88
  6. Step 6: Final answer
    x = 32,280.92

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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.