Home / 26,382.72-36,408.99-15,778.50

Finding the Fourth Proportional to 26,382.72, 36,408.99 and 15,778.50

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Solution

The fourth proportional to 26,382.72, 36,408.99 and 15,778.50 is: 21,774.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,382.72 : 36,408.99 = 15,778.50 : x
  2. Step 2: Convert to fraction form
    26,382.72/36,408.99 = 15,778.50/x
  3. Step 3: Cross multiply
    26,382.72x = 36,408.99 × 15,778.50
  4. Step 4: Simplify right side
    26,382.72x = 574,479,248.72
  5. Step 5: Solve for x
    x = 574,479,248.72/26,382.72
  6. Step 6: Final answer
    x = 21,774.83

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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.