Home / 28,399.71-39,191.63-16,469.98

Finding the Fourth Proportional to 28,399.71, 39,191.63 and 16,469.98

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Solution

The fourth proportional to 28,399.71, 39,191.63 and 16,469.98 is: 22,728.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,399.71 : 39,191.63 = 16,469.98 : x
  2. Step 2: Convert to fraction form
    28,399.71/39,191.63 = 16,469.98/x
  3. Step 3: Cross multiply
    28,399.71x = 39,191.63 × 16,469.98
  4. Step 4: Simplify right side
    28,399.71x = 645,485,166.31
  5. Step 5: Solve for x
    x = 645,485,166.31/28,399.71
  6. Step 6: Final answer
    x = 22,728.58

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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.