Home / 20,022.69-30,041.19-8,928.39

Finding the Fourth Proportional to 20,022.69, 30,041.19 and 8,928.39

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Solution

The fourth proportional to 20,022.69, 30,041.19 and 8,928.39 is: 13,395.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.69 : 30,041.19 = 8,928.39 : x
  2. Step 2: Convert to fraction form
    20,022.69/30,041.19 = 8,928.39/x
  3. Step 3: Cross multiply
    20,022.69x = 30,041.19 × 8,928.39
  4. Step 4: Simplify right side
    20,022.69x = 268,219,460.38
  5. Step 5: Solve for x
    x = 268,219,460.38/20,022.69
  6. Step 6: Final answer
    x = 13,395.78

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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.