Home / 20,215.73-30,329.80-10,361.93

Finding the Fourth Proportional to 20,215.73, 30,329.80 and 10,361.93

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Solution

The fourth proportional to 20,215.73, 30,329.80 and 10,361.93 is: 15,546.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.73 : 30,329.80 = 10,361.93 : x
  2. Step 2: Convert to fraction form
    20,215.73/30,329.80 = 10,361.93/x
  3. Step 3: Cross multiply
    20,215.73x = 30,329.80 × 10,361.93
  4. Step 4: Simplify right side
    20,215.73x = 314,275,264.51
  5. Step 5: Solve for x
    x = 314,275,264.51/20,215.73
  6. Step 6: Final answer
    x = 15,546.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.