Home / 20,440.22-28,228.92-14,083.34

Finding the Fourth Proportional to 20,440.22, 28,228.92 and 14,083.34

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Solution

The fourth proportional to 20,440.22, 28,228.92 and 14,083.34 is: 19,449.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440.22 : 28,228.92 = 14,083.34 : x
  2. Step 2: Convert to fraction form
    20,440.22/28,228.92 = 14,083.34/x
  3. Step 3: Cross multiply
    20,440.22x = 28,228.92 × 14,083.34
  4. Step 4: Simplify right side
    20,440.22x = 397,557,478.19
  5. Step 5: Solve for x
    x = 397,557,478.19/20,440.22
  6. Step 6: Final answer
    x = 19,449.77

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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.