Home / 38,187.43-57,267.47-13,220.77

Finding the Fourth Proportional to 38,187.43, 57,267.47 and 13,220.77

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Solution

The fourth proportional to 38,187.43, 57,267.47 and 13,220.77 is: 19,826.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,187.43 : 57,267.47 = 13,220.77 : x
  2. Step 2: Convert to fraction form
    38,187.43/57,267.47 = 13,220.77/x
  3. Step 3: Cross multiply
    38,187.43x = 57,267.47 × 13,220.77
  4. Step 4: Simplify right side
    38,187.43x = 757,120,207.68
  5. Step 5: Solve for x
    x = 757,120,207.68/38,187.43
  6. Step 6: Final answer
    x = 19,826.43

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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.