Home / 28,921.14-39,933.81-22,196.13

Finding the Fourth Proportional to 28,921.14, 39,933.81 and 22,196.13

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Solution

The fourth proportional to 28,921.14, 39,933.81 and 22,196.13 is: 30,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.14 : 39,933.81 = 22,196.13 : x
  2. Step 2: Convert to fraction form
    28,921.14/39,933.81 = 22,196.13/x
  3. Step 3: Cross multiply
    28,921.14x = 39,933.81 × 22,196.13
  4. Step 4: Simplify right side
    28,921.14x = 886,376,038.16
  5. Step 5: Solve for x
    x = 886,376,038.16/28,921.14
  6. Step 6: Final answer
    x = 30,648.03

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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.