Home / 28,468.05-39,285.91-15,892.80

Finding the Fourth Proportional to 28,468.05, 39,285.91 and 15,892.80

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Solution

The fourth proportional to 28,468.05, 39,285.91 and 15,892.80 is: 21,932.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.05 : 39,285.91 = 15,892.80 : x
  2. Step 2: Convert to fraction form
    28,468.05/39,285.91 = 15,892.80/x
  3. Step 3: Cross multiply
    28,468.05x = 39,285.91 × 15,892.80
  4. Step 4: Simplify right side
    28,468.05x = 624,363,110.45
  5. Step 5: Solve for x
    x = 624,363,110.45/28,468.05
  6. Step 6: Final answer
    x = 21,932.06

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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.