Home / 28,861.32-39,816.90-16,283.64

Finding the Fourth Proportional to 28,861.32, 39,816.90 and 16,283.64

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Solution

The fourth proportional to 28,861.32, 39,816.90 and 16,283.64 is: 22,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.32 : 39,816.90 = 16,283.64 : x
  2. Step 2: Convert to fraction form
    28,861.32/39,816.90 = 16,283.64/x
  3. Step 3: Cross multiply
    28,861.32x = 39,816.90 × 16,283.64
  4. Step 4: Simplify right side
    28,861.32x = 648,364,065.52
  5. Step 5: Solve for x
    x = 648,364,065.52/28,861.32
  6. Step 6: Final answer
    x = 22,464.81

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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.