Home / 28,083.28-42,115.20-15,622.24

Finding the Fourth Proportional to 28,083.28, 42,115.20 and 15,622.24

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Solution

The fourth proportional to 28,083.28, 42,115.20 and 15,622.24 is: 23,427.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.28 : 42,115.20 = 15,622.24 : x
  2. Step 2: Convert to fraction form
    28,083.28/42,115.20 = 15,622.24/x
  3. Step 3: Cross multiply
    28,083.28x = 42,115.20 × 15,622.24
  4. Step 4: Simplify right side
    28,083.28x = 657,933,762.05
  5. Step 5: Solve for x
    x = 657,933,762.05/28,083.28
  6. Step 6: Final answer
    x = 23,427.95

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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.