Home / 20,941.29-28,902.57-14,222.34

Finding the Fourth Proportional to 20,941.29, 28,902.57 and 14,222.34

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Solution

The fourth proportional to 20,941.29, 28,902.57 and 14,222.34 is: 19,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.29 : 28,902.57 = 14,222.34 : x
  2. Step 2: Convert to fraction form
    20,941.29/28,902.57 = 14,222.34/x
  3. Step 3: Cross multiply
    20,941.29x = 28,902.57 × 14,222.34
  4. Step 4: Simplify right side
    20,941.29x = 411,062,177.41
  5. Step 5: Solve for x
    x = 411,062,177.41/20,941.29
  6. Step 6: Final answer
    x = 19,629.27

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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.