Home / 20,250.76-30,395.58-9,869.80

Finding the Fourth Proportional to 20,250.76, 30,395.58 and 9,869.80

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Solution

The fourth proportional to 20,250.76, 30,395.58 and 9,869.80 is: 14,814.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.76 : 30,395.58 = 9,869.80 : x
  2. Step 2: Convert to fraction form
    20,250.76/30,395.58 = 9,869.80/x
  3. Step 3: Cross multiply
    20,250.76x = 30,395.58 × 9,869.80
  4. Step 4: Simplify right side
    20,250.76x = 299,998,295.48
  5. Step 5: Solve for x
    x = 299,998,295.48/20,250.76
  6. Step 6: Final answer
    x = 14,814.17

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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.