Home / 20,206.43-30,309.69-9,810.89

Finding the Fourth Proportional to 20,206.43, 30,309.69 and 9,810.89

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Solution

The fourth proportional to 20,206.43, 30,309.69 and 9,810.89 is: 14,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206.43 : 30,309.69 = 9,810.89 : x
  2. Step 2: Convert to fraction form
    20,206.43/30,309.69 = 9,810.89/x
  3. Step 3: Cross multiply
    20,206.43x = 30,309.69 × 9,810.89
  4. Step 4: Simplify right side
    20,206.43x = 297,365,034.52
  5. Step 5: Solve for x
    x = 297,365,034.52/20,206.43
  6. Step 6: Final answer
    x = 14,716.36

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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.