Home / 20,200.55-30,300.84-9,668.10

Finding the Fourth Proportional to 20,200.55, 30,300.84 and 9,668.10

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Solution

The fourth proportional to 20,200.55, 30,300.84 and 9,668.10 is: 14,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.55 : 30,300.84 = 9,668.10 : x
  2. Step 2: Convert to fraction form
    20,200.55/30,300.84 = 9,668.10/x
  3. Step 3: Cross multiply
    20,200.55x = 30,300.84 × 9,668.10
  4. Step 4: Simplify right side
    20,200.55x = 292,951,475.45
  5. Step 5: Solve for x
    x = 292,951,475.45/20,200.55
  6. Step 6: Final answer
    x = 14,502.15

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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.