Home / 28,951.93-39,957.96-18,342.55

Finding the Fourth Proportional to 28,951.93, 39,957.96 and 18,342.55

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Solution

The fourth proportional to 28,951.93, 39,957.96 and 18,342.55 is: 25,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,951.93 : 39,957.96 = 18,342.55 : x
  2. Step 2: Convert to fraction form
    28,951.93/39,957.96 = 18,342.55/x
  3. Step 3: Cross multiply
    28,951.93x = 39,957.96 × 18,342.55
  4. Step 4: Simplify right side
    28,951.93x = 732,930,879.20
  5. Step 5: Solve for x
    x = 732,930,879.20/28,951.93
  6. Step 6: Final answer
    x = 25,315.44

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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.