Home / 20,914.40-31,364.96-6,871.13

Finding the Fourth Proportional to 20,914.40, 31,364.96 and 6,871.13

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Solution

The fourth proportional to 20,914.40, 31,364.96 and 6,871.13 is: 10,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.40 : 31,364.96 = 6,871.13 : x
  2. Step 2: Convert to fraction form
    20,914.40/31,364.96 = 6,871.13/x
  3. Step 3: Cross multiply
    20,914.40x = 31,364.96 × 6,871.13
  4. Step 4: Simplify right side
    20,914.40x = 215,512,673.03
  5. Step 5: Solve for x
    x = 215,512,673.03/20,914.40
  6. Step 6: Final answer
    x = 10,304.51

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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.