Home / 19,098.24-28,648.80-12,419.52

Finding the Fourth Proportional to 19,098.24, 28,648.80 and 12,419.52

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Solution

The fourth proportional to 19,098.24, 28,648.80 and 12,419.52 is: 18,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,098.24 : 28,648.80 = 12,419.52 : x
  2. Step 2: Convert to fraction form
    19,098.24/28,648.80 = 12,419.52/x
  3. Step 3: Cross multiply
    19,098.24x = 28,648.80 × 12,419.52
  4. Step 4: Simplify right side
    19,098.24x = 355,804,344.58
  5. Step 5: Solve for x
    x = 355,804,344.58/19,098.24
  6. Step 6: Final answer
    x = 18,630.22

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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.