Home / 20,436.15-28,203.19-11,941.02

Finding the Fourth Proportional to 20,436.15, 28,203.19 and 11,941.02

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Solution

The fourth proportional to 20,436.15, 28,203.19 and 11,941.02 is: 16,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436.15 : 28,203.19 = 11,941.02 : x
  2. Step 2: Convert to fraction form
    20,436.15/28,203.19 = 11,941.02/x
  3. Step 3: Cross multiply
    20,436.15x = 28,203.19 × 11,941.02
  4. Step 4: Simplify right side
    20,436.15x = 336,774,826.00
  5. Step 5: Solve for x
    x = 336,774,826.00/20,436.15
  6. Step 6: Final answer
    x = 16,479.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.