Home / 28,391.62-39,177.45-16,458.70

Finding the Fourth Proportional to 28,391.62, 39,177.45 and 16,458.70

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Solution

The fourth proportional to 28,391.62, 39,177.45 and 16,458.70 is: 22,711.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,391.62 : 39,177.45 = 16,458.70 : x
  2. Step 2: Convert to fraction form
    28,391.62/39,177.45 = 16,458.70/x
  3. Step 3: Cross multiply
    28,391.62x = 39,177.45 × 16,458.70
  4. Step 4: Simplify right side
    28,391.62x = 644,809,896.32
  5. Step 5: Solve for x
    x = 644,809,896.32/28,391.62
  6. Step 6: Final answer
    x = 22,711.28

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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.