Home / 28,105-38,767.93-18,541.49

Finding the Fourth Proportional to 28,105, 38,767.93 and 18,541.49

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Solution

The fourth proportional to 28,105, 38,767.93 and 18,541.49 is: 25,576.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105 : 38,767.93 = 18,541.49 : x
  2. Step 2: Convert to fraction form
    28,105/38,767.93 = 18,541.49/x
  3. Step 3: Cross multiply
    28,105x = 38,767.93 × 18,541.49
  4. Step 4: Simplify right side
    28,105x = 718,815,186.42
  5. Step 5: Solve for x
    x = 718,815,186.42/28,105
  6. Step 6: Final answer
    x = 25,576.06

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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.