Home / 28,400.10-39,185.83-16,299.84

Finding the Fourth Proportional to 28,400.10, 39,185.83 and 16,299.84

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Solution

The fourth proportional to 28,400.10, 39,185.83 and 16,299.84 is: 22,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.10 : 39,185.83 = 16,299.84 : x
  2. Step 2: Convert to fraction form
    28,400.10/39,185.83 = 16,299.84/x
  3. Step 3: Cross multiply
    28,400.10x = 39,185.83 × 16,299.84
  4. Step 4: Simplify right side
    28,400.10x = 638,722,724.69
  5. Step 5: Solve for x
    x = 638,722,724.69/28,400.10
  6. Step 6: Final answer
    x = 22,490.16

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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.