Home / 28,456.10-39,251.09-17,278.10

Finding the Fourth Proportional to 28,456.10, 39,251.09 and 17,278.10

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Solution

The fourth proportional to 28,456.10, 39,251.09 and 17,278.10 is: 23,832.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,456.10 : 39,251.09 = 17,278.10 : x
  2. Step 2: Convert to fraction form
    28,456.10/39,251.09 = 17,278.10/x
  3. Step 3: Cross multiply
    28,456.10x = 39,251.09 × 17,278.10
  4. Step 4: Simplify right side
    28,456.10x = 678,184,258.13
  5. Step 5: Solve for x
    x = 678,184,258.13/28,456.10
  6. Step 6: Final answer
    x = 23,832.65

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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.