Home / 18,889.51-28,301.44-13,255.24

Finding the Fourth Proportional to 18,889.51, 28,301.44 and 13,255.24

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Solution

The fourth proportional to 18,889.51, 28,301.44 and 13,255.24 is: 19,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.51 : 28,301.44 = 13,255.24 : x
  2. Step 2: Convert to fraction form
    18,889.51/28,301.44 = 13,255.24/x
  3. Step 3: Cross multiply
    18,889.51x = 28,301.44 × 13,255.24
  4. Step 4: Simplify right side
    18,889.51x = 375,142,379.55
  5. Step 5: Solve for x
    x = 375,142,379.55/18,889.51
  6. Step 6: Final answer
    x = 19,859.83

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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.