Home / 28,383.72-39,207.78-25,734.12

Finding the Fourth Proportional to 28,383.72, 39,207.78 and 25,734.12

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Solution

The fourth proportional to 28,383.72, 39,207.78 and 25,734.12 is: 35,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.72 : 39,207.78 = 25,734.12 : x
  2. Step 2: Convert to fraction form
    28,383.72/39,207.78 = 25,734.12/x
  3. Step 3: Cross multiply
    28,383.72x = 39,207.78 × 25,734.12
  4. Step 4: Simplify right side
    28,383.72x = 1,008,977,715.45
  5. Step 5: Solve for x
    x = 1,008,977,715.45/28,383.72
  6. Step 6: Final answer
    x = 35,547.76

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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.