Home / 20,464.02-30,707.81-8,616.86

Finding the Fourth Proportional to 20,464.02, 30,707.81 and 8,616.86

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Solution

The fourth proportional to 20,464.02, 30,707.81 and 8,616.86 is: 12,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.02 : 30,707.81 = 8,616.86 : x
  2. Step 2: Convert to fraction form
    20,464.02/30,707.81 = 8,616.86/x
  3. Step 3: Cross multiply
    20,464.02x = 30,707.81 × 8,616.86
  4. Step 4: Simplify right side
    20,464.02x = 264,604,899.68
  5. Step 5: Solve for x
    x = 264,604,899.68/20,464.02
  6. Step 6: Final answer
    x = 12,930.25

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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.