Home / 22,428.12-30,938.82-13,927.56

Finding the Fourth Proportional to 22,428.12, 30,938.82 and 13,927.56

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Solution

The fourth proportional to 22,428.12, 30,938.82 and 13,927.56 is: 19,212.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,428.12 : 30,938.82 = 13,927.56 : x
  2. Step 2: Convert to fraction form
    22,428.12/30,938.82 = 13,927.56/x
  3. Step 3: Cross multiply
    22,428.12x = 30,938.82 × 13,927.56
  4. Step 4: Simplify right side
    22,428.12x = 430,902,271.88
  5. Step 5: Solve for x
    x = 430,902,271.88/22,428.12
  6. Step 6: Final answer
    x = 19,212.59

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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.