Home / 20,167.56-30,240.18-9,640.22

Finding the Fourth Proportional to 20,167.56, 30,240.18 and 9,640.22

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Solution

The fourth proportional to 20,167.56, 30,240.18 and 9,640.22 is: 14,454.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.56 : 30,240.18 = 9,640.22 : x
  2. Step 2: Convert to fraction form
    20,167.56/30,240.18 = 9,640.22/x
  3. Step 3: Cross multiply
    20,167.56x = 30,240.18 × 9,640.22
  4. Step 4: Simplify right side
    20,167.56x = 291,521,836.84
  5. Step 5: Solve for x
    x = 291,521,836.84/20,167.56
  6. Step 6: Final answer
    x = 14,454.99

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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.