Home / 22,015.34-30,381.18-11,943.78

Finding the Fourth Proportional to 22,015.34, 30,381.18 and 11,943.78

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Solution

The fourth proportional to 22,015.34, 30,381.18 and 11,943.78 is: 16,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,015.34 : 30,381.18 = 11,943.78 : x
  2. Step 2: Convert to fraction form
    22,015.34/30,381.18 = 11,943.78/x
  3. Step 3: Cross multiply
    22,015.34x = 30,381.18 × 11,943.78
  4. Step 4: Simplify right side
    22,015.34x = 362,866,054.11
  5. Step 5: Solve for x
    x = 362,866,054.11/22,015.34
  6. Step 6: Final answer
    x = 16,482.42

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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.