Home / 25,550.91-38,313.48-7,778.16

Finding the Fourth Proportional to 25,550.91, 38,313.48 and 7,778.16

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Solution

The fourth proportional to 25,550.91, 38,313.48 and 7,778.16 is: 11,663.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,550.91 : 38,313.48 = 7,778.16 : x
  2. Step 2: Convert to fraction form
    25,550.91/38,313.48 = 7,778.16/x
  3. Step 3: Cross multiply
    25,550.91x = 38,313.48 × 7,778.16
  4. Step 4: Simplify right side
    25,550.91x = 298,008,377.60
  5. Step 5: Solve for x
    x = 298,008,377.60/25,550.91
  6. Step 6: Final answer
    x = 11,663.32

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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.