Home / 28,238.96-42,349.80-19,529.84

Finding the Fourth Proportional to 28,238.96, 42,349.80 and 19,529.84

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Solution

The fourth proportional to 28,238.96, 42,349.80 and 19,529.84 is: 29,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238.96 : 42,349.80 = 19,529.84 : x
  2. Step 2: Convert to fraction form
    28,238.96/42,349.80 = 19,529.84/x
  3. Step 3: Cross multiply
    28,238.96x = 42,349.80 × 19,529.84
  4. Step 4: Simplify right side
    28,238.96x = 827,084,818.03
  5. Step 5: Solve for x
    x = 827,084,818.03/28,238.96
  6. Step 6: Final answer
    x = 29,288.78

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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.