Home / 22,123.89-30,529.44-13,172.04

Finding the Fourth Proportional to 22,123.89, 30,529.44 and 13,172.04

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Solution

The fourth proportional to 22,123.89, 30,529.44 and 13,172.04 is: 18,176.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,123.89 : 30,529.44 = 13,172.04 : x
  2. Step 2: Convert to fraction form
    22,123.89/30,529.44 = 13,172.04/x
  3. Step 3: Cross multiply
    22,123.89x = 30,529.44 × 13,172.04
  4. Step 4: Simplify right side
    22,123.89x = 402,135,004.86
  5. Step 5: Solve for x
    x = 402,135,004.86/22,123.89
  6. Step 6: Final answer
    x = 18,176.51

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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.