Home / 28,514.96-42,778.13-8,792.76

Finding the Fourth Proportional to 28,514.96, 42,778.13 and 8,792.76

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Solution

The fourth proportional to 28,514.96, 42,778.13 and 8,792.76 is: 13,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.96 : 42,778.13 = 8,792.76 : x
  2. Step 2: Convert to fraction form
    28,514.96/42,778.13 = 8,792.76/x
  3. Step 3: Cross multiply
    28,514.96x = 42,778.13 × 8,792.76
  4. Step 4: Simplify right side
    28,514.96x = 376,137,830.34
  5. Step 5: Solve for x
    x = 376,137,830.34/28,514.96
  6. Step 6: Final answer
    x = 13,190.89

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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.