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Finding the Fourth Proportional to 30,103.59, 45,138.95 and 23,903.43

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Solution

The fourth proportional to 30,103.59, 45,138.95 and 23,903.43 is: 35,842.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.59 : 45,138.95 = 23,903.43 : x
  2. Step 2: Convert to fraction form
    30,103.59/45,138.95 = 23,903.43/x
  3. Step 3: Cross multiply
    30,103.59x = 45,138.95 × 23,903.43
  4. Step 4: Simplify right side
    30,103.59x = 1,078,975,612.08
  5. Step 5: Solve for x
    x = 1,078,975,612.08/30,103.59
  6. Step 6: Final answer
    x = 35,842.09

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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.