Home / 28,349.87-39,120.28-16,414.01

Finding the Fourth Proportional to 28,349.87, 39,120.28 and 16,414.01

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Solution

The fourth proportional to 28,349.87, 39,120.28 and 16,414.01 is: 22,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,349.87 : 39,120.28 = 16,414.01 : x
  2. Step 2: Convert to fraction form
    28,349.87/39,120.28 = 16,414.01/x
  3. Step 3: Cross multiply
    28,349.87x = 39,120.28 × 16,414.01
  4. Step 4: Simplify right side
    28,349.87x = 642,120,723.89
  5. Step 5: Solve for x
    x = 642,120,723.89/28,349.87
  6. Step 6: Final answer
    x = 22,649.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.