Home / 13,356.47-20,035.86-3,495.74

Finding the Fourth Proportional to 13,356.47, 20,035.86 and 3,495.74

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Solution

The fourth proportional to 13,356.47, 20,035.86 and 3,495.74 is: 5,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.47 : 20,035.86 = 3,495.74 : x
  2. Step 2: Convert to fraction form
    13,356.47/20,035.86 = 3,495.74/x
  3. Step 3: Cross multiply
    13,356.47x = 20,035.86 × 3,495.74
  4. Step 4: Simplify right side
    13,356.47x = 70,040,157.24
  5. Step 5: Solve for x
    x = 70,040,157.24/13,356.47
  6. Step 6: Final answer
    x = 5,243.91

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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.