Home / 20,560.17-30,817.80-10,550.91

Finding the Fourth Proportional to 20,560.17, 30,817.80 and 10,550.91

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Solution

The fourth proportional to 20,560.17, 30,817.80 and 10,550.91 is: 15,814.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.17 : 30,817.80 = 10,550.91 : x
  2. Step 2: Convert to fraction form
    20,560.17/30,817.80 = 10,550.91/x
  3. Step 3: Cross multiply
    20,560.17x = 30,817.80 × 10,550.91
  4. Step 4: Simplify right side
    20,560.17x = 325,155,834.20
  5. Step 5: Solve for x
    x = 325,155,834.20/20,560.17
  6. Step 6: Final answer
    x = 15,814.84

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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.