Home / 26,005.12-35,875.48-15,388.61

Finding the Fourth Proportional to 26,005.12, 35,875.48 and 15,388.61

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Solution

The fourth proportional to 26,005.12, 35,875.48 and 15,388.61 is: 21,229.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,005.12 : 35,875.48 = 15,388.61 : x
  2. Step 2: Convert to fraction form
    26,005.12/35,875.48 = 15,388.61/x
  3. Step 3: Cross multiply
    26,005.12x = 35,875.48 × 15,388.61
  4. Step 4: Simplify right side
    26,005.12x = 552,073,770.28
  5. Step 5: Solve for x
    x = 552,073,770.28/26,005.12
  6. Step 6: Final answer
    x = 21,229.43

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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.