Home / 19,458.22-29,162.70-12,435.52

Finding the Fourth Proportional to 19,458.22, 29,162.70 and 12,435.52

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Solution

The fourth proportional to 19,458.22, 29,162.70 and 12,435.52 is: 18,637.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,458.22 : 29,162.70 = 12,435.52 : x
  2. Step 2: Convert to fraction form
    19,458.22/29,162.70 = 12,435.52/x
  3. Step 3: Cross multiply
    19,458.22x = 29,162.70 × 12,435.52
  4. Step 4: Simplify right side
    19,458.22x = 362,653,339.10
  5. Step 5: Solve for x
    x = 362,653,339.10/19,458.22
  6. Step 6: Final answer
    x = 18,637.54

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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.