Home / 20,660.16-30,986.28-5,865.24

Finding the Fourth Proportional to 20,660.16, 30,986.28 and 5,865.24

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Solution

The fourth proportional to 20,660.16, 30,986.28 and 5,865.24 is: 8,796.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,660.16 : 30,986.28 = 5,865.24 : x
  2. Step 2: Convert to fraction form
    20,660.16/30,986.28 = 5,865.24/x
  3. Step 3: Cross multiply
    20,660.16x = 30,986.28 × 5,865.24
  4. Step 4: Simplify right side
    20,660.16x = 181,741,968.91
  5. Step 5: Solve for x
    x = 181,741,968.91/20,660.16
  6. Step 6: Final answer
    x = 8,796.74

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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.