Home / 19,738.80-27,229.32-13,365.72

Finding the Fourth Proportional to 19,738.80, 27,229.32 and 13,365.72

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Solution

The fourth proportional to 19,738.80, 27,229.32 and 13,365.72 is: 18,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.80 : 27,229.32 = 13,365.72 : x
  2. Step 2: Convert to fraction form
    19,738.80/27,229.32 = 13,365.72/x
  3. Step 3: Cross multiply
    19,738.80x = 27,229.32 × 13,365.72
  4. Step 4: Simplify right side
    19,738.80x = 363,939,466.91
  5. Step 5: Solve for x
    x = 363,939,466.91/19,738.80
  6. Step 6: Final answer
    x = 18,437.77

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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.