Home / 27,559.18-41,315.70-12,778.72

Finding the Fourth Proportional to 27,559.18, 41,315.70 and 12,778.72

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Solution

The fourth proportional to 27,559.18, 41,315.70 and 12,778.72 is: 19,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,559.18 : 41,315.70 = 12,778.72 : x
  2. Step 2: Convert to fraction form
    27,559.18/41,315.70 = 12,778.72/x
  3. Step 3: Cross multiply
    27,559.18x = 41,315.70 × 12,778.72
  4. Step 4: Simplify right side
    27,559.18x = 527,961,761.90
  5. Step 5: Solve for x
    x = 527,961,761.90/27,559.18
  6. Step 6: Final answer
    x = 19,157.38

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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.