Home / 19,540.63-29,300.01-8,440.39

Finding the Fourth Proportional to 19,540.63, 29,300.01 and 8,440.39

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Solution

The fourth proportional to 19,540.63, 29,300.01 and 8,440.39 is: 12,655.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.63 : 29,300.01 = 8,440.39 : x
  2. Step 2: Convert to fraction form
    19,540.63/29,300.01 = 8,440.39/x
  3. Step 3: Cross multiply
    19,540.63x = 29,300.01 × 8,440.39
  4. Step 4: Simplify right side
    19,540.63x = 247,303,511.40
  5. Step 5: Solve for x
    x = 247,303,511.40/19,540.63
  6. Step 6: Final answer
    x = 12,655.86

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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.