Home / 20,456.03-28,236.86-17,964.68

Finding the Fourth Proportional to 20,456.03, 28,236.86 and 17,964.68

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Solution

The fourth proportional to 20,456.03, 28,236.86 and 17,964.68 is: 24,797.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,456.03 : 28,236.86 = 17,964.68 : x
  2. Step 2: Convert to fraction form
    20,456.03/28,236.86 = 17,964.68/x
  3. Step 3: Cross multiply
    20,456.03x = 28,236.86 × 17,964.68
  4. Step 4: Simplify right side
    20,456.03x = 507,265,923.10
  5. Step 5: Solve for x
    x = 507,265,923.10/20,456.03
  6. Step 6: Final answer
    x = 24,797.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.