Home / 19,208.25-28,779.62-13,634.01

Finding the Fourth Proportional to 19,208.25, 28,779.62 and 13,634.01

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Solution

The fourth proportional to 19,208.25, 28,779.62 and 13,634.01 is: 20,427.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,208.25 : 28,779.62 = 13,634.01 : x
  2. Step 2: Convert to fraction form
    19,208.25/28,779.62 = 13,634.01/x
  3. Step 3: Cross multiply
    19,208.25x = 28,779.62 × 13,634.01
  4. Step 4: Simplify right side
    19,208.25x = 392,381,558.71
  5. Step 5: Solve for x
    x = 392,381,558.71/19,208.25
  6. Step 6: Final answer
    x = 20,427.76

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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.