Home / 20,526.66-30,789.81-6,486.69

Finding the Fourth Proportional to 20,526.66, 30,789.81 and 6,486.69

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Solution

The fourth proportional to 20,526.66, 30,789.81 and 6,486.69 is: 9,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.66 : 30,789.81 = 6,486.69 : x
  2. Step 2: Convert to fraction form
    20,526.66/30,789.81 = 6,486.69/x
  3. Step 3: Cross multiply
    20,526.66x = 30,789.81 × 6,486.69
  4. Step 4: Simplify right side
    20,526.66x = 199,723,952.63
  5. Step 5: Solve for x
    x = 199,723,952.63/20,526.66
  6. Step 6: Final answer
    x = 9,729.98

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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.