Home / 19,003.64-28,474.29-13,429.76

Finding the Fourth Proportional to 19,003.64, 28,474.29 and 13,429.76

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Solution

The fourth proportional to 19,003.64, 28,474.29 and 13,429.76 is: 20,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,003.64 : 28,474.29 = 13,429.76 : x
  2. Step 2: Convert to fraction form
    19,003.64/28,474.29 = 13,429.76/x
  3. Step 3: Cross multiply
    19,003.64x = 28,474.29 × 13,429.76
  4. Step 4: Simplify right side
    19,003.64x = 382,402,738.50
  5. Step 5: Solve for x
    x = 382,402,738.50/19,003.64
  6. Step 6: Final answer
    x = 20,122.61

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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.