Home / 20,264.28-30,410.01-7,116.68

Finding the Fourth Proportional to 20,264.28, 30,410.01 and 7,116.68

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Solution

The fourth proportional to 20,264.28, 30,410.01 and 7,116.68 is: 10,679.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.28 : 30,410.01 = 7,116.68 : x
  2. Step 2: Convert to fraction form
    20,264.28/30,410.01 = 7,116.68/x
  3. Step 3: Cross multiply
    20,264.28x = 30,410.01 × 7,116.68
  4. Step 4: Simplify right side
    20,264.28x = 216,418,157.92
  5. Step 5: Solve for x
    x = 216,418,157.92/20,264.28
  6. Step 6: Final answer
    x = 10,679.79

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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.