Home / 20,215.63-30,329.56-10,361.89

Finding the Fourth Proportional to 20,215.63, 30,329.56 and 10,361.89

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Solution

The fourth proportional to 20,215.63, 30,329.56 and 10,361.89 is: 15,545.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.63 : 30,329.56 = 10,361.89 : x
  2. Step 2: Convert to fraction form
    20,215.63/30,329.56 = 10,361.89/x
  3. Step 3: Cross multiply
    20,215.63x = 30,329.56 × 10,361.89
  4. Step 4: Simplify right side
    20,215.63x = 314,271,412.82
  5. Step 5: Solve for x
    x = 314,271,412.82/20,215.63
  6. Step 6: Final answer
    x = 15,545.97

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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.