Home / 20,276.02-30,391.32-13,269.52

Finding the Fourth Proportional to 20,276.02, 30,391.32 and 13,269.52

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Solution

The fourth proportional to 20,276.02, 30,391.32 and 13,269.52 is: 19,889.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.02 : 30,391.32 = 13,269.52 : x
  2. Step 2: Convert to fraction form
    20,276.02/30,391.32 = 13,269.52/x
  3. Step 3: Cross multiply
    20,276.02x = 30,391.32 × 13,269.52
  4. Step 4: Simplify right side
    20,276.02x = 403,278,228.57
  5. Step 5: Solve for x
    x = 403,278,228.57/20,276.02
  6. Step 6: Final answer
    x = 19,889.42

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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.