Home / 22,018.44-30,374.15-13,938.39

Finding the Fourth Proportional to 22,018.44, 30,374.15 and 13,938.39

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Solution

The fourth proportional to 22,018.44, 30,374.15 and 13,938.39 is: 19,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,018.44 : 30,374.15 = 13,938.39 : x
  2. Step 2: Convert to fraction form
    22,018.44/30,374.15 = 13,938.39/x
  3. Step 3: Cross multiply
    22,018.44x = 30,374.15 × 13,938.39
  4. Step 4: Simplify right side
    22,018.44x = 423,366,678.93
  5. Step 5: Solve for x
    x = 423,366,678.93/22,018.44
  6. Step 6: Final answer
    x = 19,227.82

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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.