Home / 20,743.12-31,096.70-9,644.10

Finding the Fourth Proportional to 20,743.12, 31,096.70 and 9,644.10

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Solution

The fourth proportional to 20,743.12, 31,096.70 and 9,644.10 is: 14,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.12 : 31,096.70 = 9,644.10 : x
  2. Step 2: Convert to fraction form
    20,743.12/31,096.70 = 9,644.10/x
  3. Step 3: Cross multiply
    20,743.12x = 31,096.70 × 9,644.10
  4. Step 4: Simplify right side
    20,743.12x = 299,899,684.47
  5. Step 5: Solve for x
    x = 299,899,684.47/20,743.12
  6. Step 6: Final answer
    x = 14,457.79

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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.