Home / 40,856.91-61,288.90-11,274.75

Finding the Fourth Proportional to 40,856.91, 61,288.90 and 11,274.75

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Solution

The fourth proportional to 40,856.91, 61,288.90 and 11,274.75 is: 16,913.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,856.91 : 61,288.90 = 11,274.75 : x
  2. Step 2: Convert to fraction form
    40,856.91/61,288.90 = 11,274.75/x
  3. Step 3: Cross multiply
    40,856.91x = 61,288.90 × 11,274.75
  4. Step 4: Simplify right side
    40,856.91x = 691,017,025.28
  5. Step 5: Solve for x
    x = 691,017,025.28/40,856.91
  6. Step 6: Final answer
    x = 16,913.10

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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.