Home / 31,267.72-43,140.90-20,096.20

Finding the Fourth Proportional to 31,267.72, 43,140.90 and 20,096.20

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Solution

The fourth proportional to 31,267.72, 43,140.90 and 20,096.20 is: 27,727.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,267.72 : 43,140.90 = 20,096.20 : x
  2. Step 2: Convert to fraction form
    31,267.72/43,140.90 = 20,096.20/x
  3. Step 3: Cross multiply
    31,267.72x = 43,140.90 × 20,096.20
  4. Step 4: Simplify right side
    31,267.72x = 866,968,154.58
  5. Step 5: Solve for x
    x = 866,968,154.58/31,267.72
  6. Step 6: Final answer
    x = 27,727.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.