Home / 13,351.68-20,030.28-5,031.60

Finding the Fourth Proportional to 13,351.68, 20,030.28 and 5,031.60

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Solution

The fourth proportional to 13,351.68, 20,030.28 and 5,031.60 is: 7,548.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.68 : 20,030.28 = 5,031.60 : x
  2. Step 2: Convert to fraction form
    13,351.68/20,030.28 = 5,031.60/x
  3. Step 3: Cross multiply
    13,351.68x = 20,030.28 × 5,031.60
  4. Step 4: Simplify right side
    13,351.68x = 100,784,356.85
  5. Step 5: Solve for x
    x = 100,784,356.85/13,351.68
  6. Step 6: Final answer
    x = 7,548.44

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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.