Home / 28,514.89-42,778.02-8,792.59

Finding the Fourth Proportional to 28,514.89, 42,778.02 and 8,792.59

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Solution

The fourth proportional to 28,514.89, 42,778.02 and 8,792.59 is: 13,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.89 : 42,778.02 = 8,792.59 : x
  2. Step 2: Convert to fraction form
    28,514.89/42,778.02 = 8,792.59/x
  3. Step 3: Cross multiply
    28,514.89x = 42,778.02 × 8,792.59
  4. Step 4: Simplify right side
    28,514.89x = 376,129,590.87
  5. Step 5: Solve for x
    x = 376,129,590.87/28,514.89
  6. Step 6: Final answer
    x = 13,190.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.