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Finding the Fourth Proportional to 30,402.92, 45,520.32 and 15,579.92

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Solution

The fourth proportional to 30,402.92, 45,520.32 and 15,579.92 is: 23,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402.92 : 45,520.32 = 15,579.92 : x
  2. Step 2: Convert to fraction form
    30,402.92/45,520.32 = 15,579.92/x
  3. Step 3: Cross multiply
    30,402.92x = 45,520.32 × 15,579.92
  4. Step 4: Simplify right side
    30,402.92x = 709,202,943.97
  5. Step 5: Solve for x
    x = 709,202,943.97/30,402.92
  6. Step 6: Final answer
    x = 23,326.80

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1.5x scale

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.