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Finding the Fourth Proportional to 30,238.31, 45,373.87 and 14,655.94

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Solution

The fourth proportional to 30,238.31, 45,373.87 and 14,655.94 is: 21,991.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.31 : 45,373.87 = 14,655.94 : x
  2. Step 2: Convert to fraction form
    30,238.31/45,373.87 = 14,655.94/x
  3. Step 3: Cross multiply
    30,238.31x = 45,373.87 × 14,655.94
  4. Step 4: Simplify right side
    30,238.31x = 664,996,621.17
  5. Step 5: Solve for x
    x = 664,996,621.17/30,238.31
  6. Step 6: Final answer
    x = 21,991.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.