Home / 13,432.02-20,145.42-3,945.48

Finding the Fourth Proportional to 13,432.02, 20,145.42 and 3,945.48

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Solution

The fourth proportional to 13,432.02, 20,145.42 and 3,945.48 is: 5,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.02 : 20,145.42 = 3,945.48 : x
  2. Step 2: Convert to fraction form
    13,432.02/20,145.42 = 3,945.48/x
  3. Step 3: Cross multiply
    13,432.02x = 20,145.42 × 3,945.48
  4. Step 4: Simplify right side
    13,432.02x = 79,483,351.70
  5. Step 5: Solve for x
    x = 79,483,351.70/13,432.02
  6. Step 6: Final answer
    x = 5,917.45

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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.