Home / 20,656.83-30,986.40-5,864.58

Finding the Fourth Proportional to 20,656.83, 30,986.40 and 5,864.58

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Solution

The fourth proportional to 20,656.83, 30,986.40 and 5,864.58 is: 8,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.83 : 30,986.40 = 5,864.58 : x
  2. Step 2: Convert to fraction form
    20,656.83/30,986.40 = 5,864.58/x
  3. Step 3: Cross multiply
    20,656.83x = 30,986.40 × 5,864.58
  4. Step 4: Simplify right side
    20,656.83x = 181,722,221.71
  5. Step 5: Solve for x
    x = 181,722,221.71/20,656.83
  6. Step 6: Final answer
    x = 8,797.20

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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.