Home / 28,857.29-39,817.86-16,758.32

Finding the Fourth Proportional to 28,857.29, 39,817.86 and 16,758.32

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Solution

The fourth proportional to 28,857.29, 39,817.86 and 16,758.32 is: 23,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.29 : 39,817.86 = 16,758.32 : x
  2. Step 2: Convert to fraction form
    28,857.29/39,817.86 = 16,758.32/x
  3. Step 3: Cross multiply
    28,857.29x = 39,817.86 × 16,758.32
  4. Step 4: Simplify right side
    28,857.29x = 667,280,439.60
  5. Step 5: Solve for x
    x = 667,280,439.60/28,857.29
  6. Step 6: Final answer
    x = 23,123.46

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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.