Home / 28,857.28-39,823.60-16,282.32

Finding the Fourth Proportional to 28,857.28, 39,823.60 and 16,282.32

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Solution

The fourth proportional to 28,857.28, 39,823.60 and 16,282.32 is: 22,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.28 : 39,823.60 = 16,282.32 : x
  2. Step 2: Convert to fraction form
    28,857.28/39,823.60 = 16,282.32/x
  3. Step 3: Cross multiply
    28,857.28x = 39,823.60 × 16,282.32
  4. Step 4: Simplify right side
    28,857.28x = 648,420,598.75
  5. Step 5: Solve for x
    x = 648,420,598.75/28,857.28
  6. Step 6: Final answer
    x = 22,469.91

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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.