Home / 38,391.46-57,550.79-13,415.28

Finding the Fourth Proportional to 38,391.46, 57,550.79 and 13,415.28

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Solution

The fourth proportional to 38,391.46, 57,550.79 and 13,415.28 is: 20,110.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,391.46 : 57,550.79 = 13,415.28 : x
  2. Step 2: Convert to fraction form
    38,391.46/57,550.79 = 13,415.28/x
  3. Step 3: Cross multiply
    38,391.46x = 57,550.79 × 13,415.28
  4. Step 4: Simplify right side
    38,391.46x = 772,059,674.32
  5. Step 5: Solve for x
    x = 772,059,674.32/38,391.46
  6. Step 6: Final answer
    x = 20,110.19

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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.