Home / 13,355.39-20,031.55-3,495.62

Finding the Fourth Proportional to 13,355.39, 20,031.55 and 3,495.62

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Solution

The fourth proportional to 13,355.39, 20,031.55 and 3,495.62 is: 5,243.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.39 : 20,031.55 = 3,495.62 : x
  2. Step 2: Convert to fraction form
    13,355.39/20,031.55 = 3,495.62/x
  3. Step 3: Cross multiply
    13,355.39x = 20,031.55 × 3,495.62
  4. Step 4: Simplify right side
    13,355.39x = 70,022,577.91
  5. Step 5: Solve for x
    x = 70,022,577.91/13,355.39
  6. Step 6: Final answer
    x = 5,243.02

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1.5x scale

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.