Home / 30,665.43-45,863.96-28,423.76

Finding the Fourth Proportional to 30,665.43, 45,863.96 and 28,423.76

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Solution

The fourth proportional to 30,665.43, 45,863.96 and 28,423.76 is: 42,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,665.43 : 45,863.96 = 28,423.76 : x
  2. Step 2: Convert to fraction form
    30,665.43/45,863.96 = 28,423.76/x
  3. Step 3: Cross multiply
    30,665.43x = 45,863.96 × 28,423.76
  4. Step 4: Simplify right side
    30,665.43x = 1,303,625,820.25
  5. Step 5: Solve for x
    x = 1,303,625,820.25/30,665.43
  6. Step 6: Final answer
    x = 42,511.25

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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.