Home / 20,439.08-30,652.14-8,749.16

Finding the Fourth Proportional to 20,439.08, 30,652.14 and 8,749.16

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Solution

The fourth proportional to 20,439.08, 30,652.14 and 8,749.16 is: 13,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439.08 : 30,652.14 = 8,749.16 : x
  2. Step 2: Convert to fraction form
    20,439.08/30,652.14 = 8,749.16/x
  3. Step 3: Cross multiply
    20,439.08x = 30,652.14 × 8,749.16
  4. Step 4: Simplify right side
    20,439.08x = 268,180,477.20
  5. Step 5: Solve for x
    x = 268,180,477.20/20,439.08
  6. Step 6: Final answer
    x = 13,120.97

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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.