Home / 29,186.58-40,274.34-21,237.78

Finding the Fourth Proportional to 29,186.58, 40,274.34 and 21,237.78

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Solution

The fourth proportional to 29,186.58, 40,274.34 and 21,237.78 is: 29,305.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,186.58 : 40,274.34 = 21,237.78 : x
  2. Step 2: Convert to fraction form
    29,186.58/40,274.34 = 21,237.78/x
  3. Step 3: Cross multiply
    29,186.58x = 40,274.34 × 21,237.78
  4. Step 4: Simplify right side
    29,186.58x = 855,337,572.57
  5. Step 5: Solve for x
    x = 855,337,572.57/29,186.58
  6. Step 6: Final answer
    x = 29,305.85

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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.