Home / 18,381.03-25,338.62-14,343.28

Finding the Fourth Proportional to 18,381.03, 25,338.62 and 14,343.28

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Solution

The fourth proportional to 18,381.03, 25,338.62 and 14,343.28 is: 19,772.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.03 : 25,338.62 = 14,343.28 : x
  2. Step 2: Convert to fraction form
    18,381.03/25,338.62 = 14,343.28/x
  3. Step 3: Cross multiply
    18,381.03x = 25,338.62 × 14,343.28
  4. Step 4: Simplify right side
    18,381.03x = 363,438,893.99
  5. Step 5: Solve for x
    x = 363,438,893.99/18,381.03
  6. Step 6: Final answer
    x = 19,772.50

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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.