Home / 22,278.24-30,743.03-13,320.45

Finding the Fourth Proportional to 22,278.24, 30,743.03 and 13,320.45

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Solution

The fourth proportional to 22,278.24, 30,743.03 and 13,320.45 is: 18,381.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.24 : 30,743.03 = 13,320.45 : x
  2. Step 2: Convert to fraction form
    22,278.24/30,743.03 = 13,320.45/x
  3. Step 3: Cross multiply
    22,278.24x = 30,743.03 × 13,320.45
  4. Step 4: Simplify right side
    22,278.24x = 409,511,027.26
  5. Step 5: Solve for x
    x = 409,511,027.26/22,278.24
  6. Step 6: Final answer
    x = 18,381.66

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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.