Home / 28,957.24-39,957.62-16,211.12

Finding the Fourth Proportional to 28,957.24, 39,957.62 and 16,211.12

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Solution

The fourth proportional to 28,957.24, 39,957.62 and 16,211.12 is: 22,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.24 : 39,957.62 = 16,211.12 : x
  2. Step 2: Convert to fraction form
    28,957.24/39,957.62 = 16,211.12/x
  3. Step 3: Cross multiply
    28,957.24x = 39,957.62 × 16,211.12
  4. Step 4: Simplify right side
    28,957.24x = 647,757,772.73
  5. Step 5: Solve for x
    x = 647,757,772.73/28,957.24
  6. Step 6: Final answer
    x = 22,369.46

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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.