Home / 20,287.08-30,430.68-6,247

Finding the Fourth Proportional to 20,287.08, 30,430.68 and 6,247

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Solution

The fourth proportional to 20,287.08, 30,430.68 and 6,247 is: 9,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.08 : 30,430.68 = 6,247 : x
  2. Step 2: Convert to fraction form
    20,287.08/30,430.68 = 6,247/x
  3. Step 3: Cross multiply
    20,287.08x = 30,430.68 × 6,247
  4. Step 4: Simplify right side
    20,287.08x = 190,100,457.96
  5. Step 5: Solve for x
    x = 190,100,457.96/20,287.08
  6. Step 6: Final answer
    x = 9,370.52

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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.