Home / 21,743.46-30,001.86-20,636.19

Finding the Fourth Proportional to 21,743.46, 30,001.86 and 20,636.19

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Solution

The fourth proportional to 21,743.46, 30,001.86 and 20,636.19 is: 28,474.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.46 : 30,001.86 = 20,636.19 : x
  2. Step 2: Convert to fraction form
    21,743.46/30,001.86 = 20,636.19/x
  3. Step 3: Cross multiply
    21,743.46x = 30,001.86 × 20,636.19
  4. Step 4: Simplify right side
    21,743.46x = 619,124,083.31
  5. Step 5: Solve for x
    x = 619,124,083.31/21,743.46
  6. Step 6: Final answer
    x = 28,474.04

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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.