Home / 26,728.72-36,885.32-15,550.80

Finding the Fourth Proportional to 26,728.72, 36,885.32 and 15,550.80

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Solution

The fourth proportional to 26,728.72, 36,885.32 and 15,550.80 is: 21,459.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.72 : 36,885.32 = 15,550.80 : x
  2. Step 2: Convert to fraction form
    26,728.72/36,885.32 = 15,550.80/x
  3. Step 3: Cross multiply
    26,728.72x = 36,885.32 × 15,550.80
  4. Step 4: Simplify right side
    26,728.72x = 573,596,234.26
  5. Step 5: Solve for x
    x = 573,596,234.26/26,728.72
  6. Step 6: Final answer
    x = 21,459.92

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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.