Home / 20,221.04-30,331.64-6,181.01

Finding the Fourth Proportional to 20,221.04, 30,331.64 and 6,181.01

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Solution

The fourth proportional to 20,221.04, 30,331.64 and 6,181.01 is: 9,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.04 : 30,331.64 = 6,181.01 : x
  2. Step 2: Convert to fraction form
    20,221.04/30,331.64 = 6,181.01/x
  3. Step 3: Cross multiply
    20,221.04x = 30,331.64 × 6,181.01
  4. Step 4: Simplify right side
    20,221.04x = 187,480,246.42
  5. Step 5: Solve for x
    x = 187,480,246.42/20,221.04
  6. Step 6: Final answer
    x = 9,271.54

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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.