Home / 28,795.11-39,725.53-19,109.12

Finding the Fourth Proportional to 28,795.11, 39,725.53 and 19,109.12

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Solution

The fourth proportional to 28,795.11, 39,725.53 and 19,109.12 is: 26,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,795.11 : 39,725.53 = 19,109.12 : x
  2. Step 2: Convert to fraction form
    28,795.11/39,725.53 = 19,109.12/x
  3. Step 3: Cross multiply
    28,795.11x = 39,725.53 × 19,109.12
  4. Step 4: Simplify right side
    28,795.11x = 759,120,018.87
  5. Step 5: Solve for x
    x = 759,120,018.87/28,795.11
  6. Step 6: Final answer
    x = 26,362.81

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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.