Home / 20,955.56-31,433.34-7,100.84

Finding the Fourth Proportional to 20,955.56, 31,433.34 and 7,100.84

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Solution

The fourth proportional to 20,955.56, 31,433.34 and 7,100.84 is: 10,651.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,955.56 : 31,433.34 = 7,100.84 : x
  2. Step 2: Convert to fraction form
    20,955.56/31,433.34 = 7,100.84/x
  3. Step 3: Cross multiply
    20,955.56x = 31,433.34 × 7,100.84
  4. Step 4: Simplify right side
    20,955.56x = 223,203,118.01
  5. Step 5: Solve for x
    x = 223,203,118.01/20,955.56
  6. Step 6: Final answer
    x = 10,651.26

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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.