Home / 20,471.08-30,707.00-6,430.84

Finding the Fourth Proportional to 20,471.08, 30,707.00 and 6,430.84

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Solution

The fourth proportional to 20,471.08, 30,707.00 and 6,430.84 is: 9,646.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,471.08 : 30,707.00 = 6,430.84 : x
  2. Step 2: Convert to fraction form
    20,471.08/30,707.00 = 6,430.84/x
  3. Step 3: Cross multiply
    20,471.08x = 30,707.00 × 6,430.84
  4. Step 4: Simplify right side
    20,471.08x = 197,471,891.80
  5. Step 5: Solve for x
    x = 197,471,891.80/20,471.08
  6. Step 6: Final answer
    x = 9,646.38

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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.