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Finding the Fourth Proportional to 30,591.70, 45,882.51 and 9,812.50

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Solution

The fourth proportional to 30,591.70, 45,882.51 and 9,812.50 is: 14,717.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,591.70 : 45,882.51 = 9,812.50 : x
  2. Step 2: Convert to fraction form
    30,591.70/45,882.51 = 9,812.50/x
  3. Step 3: Cross multiply
    30,591.70x = 45,882.51 × 9,812.50
  4. Step 4: Simplify right side
    30,591.70x = 450,222,129.38
  5. Step 5: Solve for x
    x = 450,222,129.38/30,591.70
  6. Step 6: Final answer
    x = 14,717.13

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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.