Home / 20,639.86-30,964.19-5,853.30

Finding the Fourth Proportional to 20,639.86, 30,964.19 and 5,853.30

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Solution

The fourth proportional to 20,639.86, 30,964.19 and 5,853.30 is: 8,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639.86 : 30,964.19 = 5,853.30 : x
  2. Step 2: Convert to fraction form
    20,639.86/30,964.19 = 5,853.30/x
  3. Step 3: Cross multiply
    20,639.86x = 30,964.19 × 5,853.30
  4. Step 4: Simplify right side
    20,639.86x = 181,242,693.33
  5. Step 5: Solve for x
    x = 181,242,693.33/20,639.86
  6. Step 6: Final answer
    x = 8,781.20

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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.