Home / 22,334.32-30,820.35-13,386.79

Finding the Fourth Proportional to 22,334.32, 30,820.35 and 13,386.79

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Solution

The fourth proportional to 22,334.32, 30,820.35 and 13,386.79 is: 18,473.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,334.32 : 30,820.35 = 13,386.79 : x
  2. Step 2: Convert to fraction form
    22,334.32/30,820.35 = 13,386.79/x
  3. Step 3: Cross multiply
    22,334.32x = 30,820.35 × 13,386.79
  4. Step 4: Simplify right side
    22,334.32x = 412,585,553.18
  5. Step 5: Solve for x
    x = 412,585,553.18/22,334.32
  6. Step 6: Final answer
    x = 18,473.16

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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.