Home / 45,292.46-67,916.82-18,990.14

Finding the Fourth Proportional to 45,292.46, 67,916.82 and 18,990.14

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Solution

The fourth proportional to 45,292.46, 67,916.82 and 18,990.14 is: 28,476.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,292.46 : 67,916.82 = 18,990.14 : x
  2. Step 2: Convert to fraction form
    45,292.46/67,916.82 = 18,990.14/x
  3. Step 3: Cross multiply
    45,292.46x = 67,916.82 × 18,990.14
  4. Step 4: Simplify right side
    45,292.46x = 1,289,749,920.15
  5. Step 5: Solve for x
    x = 1,289,749,920.15/45,292.46
  6. Step 6: Final answer
    x = 28,476.04

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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.