Home / 20,538.28-30,811.21-6,501.84

Finding the Fourth Proportional to 20,538.28, 30,811.21 and 6,501.84

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Solution

The fourth proportional to 20,538.28, 30,811.21 and 6,501.84 is: 9,753.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.28 : 30,811.21 = 6,501.84 : x
  2. Step 2: Convert to fraction form
    20,538.28/30,811.21 = 6,501.84/x
  3. Step 3: Cross multiply
    20,538.28x = 30,811.21 × 6,501.84
  4. Step 4: Simplify right side
    20,538.28x = 200,329,557.63
  5. Step 5: Solve for x
    x = 200,329,557.63/20,538.28
  6. Step 6: Final answer
    x = 9,753.96

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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.