Home / 28,369.81-39,149.44-15,793.93

Finding the Fourth Proportional to 28,369.81, 39,149.44 and 15,793.93

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Solution

The fourth proportional to 28,369.81, 39,149.44 and 15,793.93 is: 21,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.81 : 39,149.44 = 15,793.93 : x
  2. Step 2: Convert to fraction form
    28,369.81/39,149.44 = 15,793.93/x
  3. Step 3: Cross multiply
    28,369.81x = 39,149.44 × 15,793.93
  4. Step 4: Simplify right side
    28,369.81x = 618,323,514.90
  5. Step 5: Solve for x
    x = 618,323,514.90/28,369.81
  6. Step 6: Final answer
    x = 21,795.12

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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.