Home / 33,107.10-45,688.70-18,000.78

Finding the Fourth Proportional to 33,107.10, 45,688.70 and 18,000.78

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Solution

The fourth proportional to 33,107.10, 45,688.70 and 18,000.78 is: 24,841.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,107.10 : 45,688.70 = 18,000.78 : x
  2. Step 2: Convert to fraction form
    33,107.10/45,688.70 = 18,000.78/x
  3. Step 3: Cross multiply
    33,107.10x = 45,688.70 × 18,000.78
  4. Step 4: Simplify right side
    33,107.10x = 822,432,237.19
  5. Step 5: Solve for x
    x = 822,432,237.19/33,107.10
  6. Step 6: Final answer
    x = 24,841.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.