Home / 40,640.91-60,967.18-12,563.40

Finding the Fourth Proportional to 40,640.91, 60,967.18 and 12,563.40

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Solution

The fourth proportional to 40,640.91, 60,967.18 and 12,563.40 is: 18,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,640.91 : 60,967.18 = 12,563.40 : x
  2. Step 2: Convert to fraction form
    40,640.91/60,967.18 = 12,563.40/x
  3. Step 3: Cross multiply
    40,640.91x = 60,967.18 × 12,563.40
  4. Step 4: Simplify right side
    40,640.91x = 765,955,069.21
  5. Step 5: Solve for x
    x = 765,955,069.21/40,640.91
  6. Step 6: Final answer
    x = 18,846.90

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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.