Home / 30,905.78-46,363.30-11,188.96

Finding the Fourth Proportional to 30,905.78, 46,363.30 and 11,188.96

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Solution

The fourth proportional to 30,905.78, 46,363.30 and 11,188.96 is: 16,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.78 : 46,363.30 = 11,188.96 : x
  2. Step 2: Convert to fraction form
    30,905.78/46,363.30 = 11,188.96/x
  3. Step 3: Cross multiply
    30,905.78x = 46,363.30 × 11,188.96
  4. Step 4: Simplify right side
    30,905.78x = 518,756,965.29
  5. Step 5: Solve for x
    x = 518,756,965.29/30,905.78
  6. Step 6: Final answer
    x = 16,785.11

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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.