Home / 28,323.38-42,455.91-15,172.22

Finding the Fourth Proportional to 28,323.38, 42,455.91 and 15,172.22

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Solution

The fourth proportional to 28,323.38, 42,455.91 and 15,172.22 is: 22,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,323.38 : 42,455.91 = 15,172.22 : x
  2. Step 2: Convert to fraction form
    28,323.38/42,455.91 = 15,172.22/x
  3. Step 3: Cross multiply
    28,323.38x = 42,455.91 × 15,172.22
  4. Step 4: Simplify right side
    28,323.38x = 644,150,406.82
  5. Step 5: Solve for x
    x = 644,150,406.82/28,323.38
  6. Step 6: Final answer
    x = 22,742.71

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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.