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Finding the Fourth Proportional to 30,604.47, 45,869.79 and 15,805.32

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Solution

The fourth proportional to 30,604.47, 45,869.79 and 15,805.32 is: 23,688.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,604.47 : 45,869.79 = 15,805.32 : x
  2. Step 2: Convert to fraction form
    30,604.47/45,869.79 = 15,805.32/x
  3. Step 3: Cross multiply
    30,604.47x = 45,869.79 × 15,805.32
  4. Step 4: Simplify right side
    30,604.47x = 724,986,709.28
  5. Step 5: Solve for x
    x = 724,986,709.28/30,604.47
  6. Step 6: Final answer
    x = 23,688.92

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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.