Home / 20,404.69-30,541.41-10,530.52

Finding the Fourth Proportional to 20,404.69, 30,541.41 and 10,530.52

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Solution

The fourth proportional to 20,404.69, 30,541.41 and 10,530.52 is: 15,761.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.69 : 30,541.41 = 10,530.52 : x
  2. Step 2: Convert to fraction form
    20,404.69/30,541.41 = 10,530.52/x
  3. Step 3: Cross multiply
    20,404.69x = 30,541.41 × 10,530.52
  4. Step 4: Simplify right side
    20,404.69x = 321,616,928.83
  5. Step 5: Solve for x
    x = 321,616,928.83/20,404.69
  6. Step 6: Final answer
    x = 15,761.91

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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.