Home / 13,564.41-20,339.28-4,200.39

Finding the Fourth Proportional to 13,564.41, 20,339.28 and 4,200.39

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Solution

The fourth proportional to 13,564.41, 20,339.28 and 4,200.39 is: 6,298.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.41 : 20,339.28 = 4,200.39 : x
  2. Step 2: Convert to fraction form
    13,564.41/20,339.28 = 4,200.39/x
  3. Step 3: Cross multiply
    13,564.41x = 20,339.28 × 4,200.39
  4. Step 4: Simplify right side
    13,564.41x = 85,432,908.32
  5. Step 5: Solve for x
    x = 85,432,908.32/13,564.41
  6. Step 6: Final answer
    x = 6,298.31

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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.