Home / 29,429.78-40,586.19-21,894.98

Finding the Fourth Proportional to 29,429.78, 40,586.19 and 21,894.98

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Solution

The fourth proportional to 29,429.78, 40,586.19 and 21,894.98 is: 30,195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,429.78 : 40,586.19 = 21,894.98 : x
  2. Step 2: Convert to fraction form
    29,429.78/40,586.19 = 21,894.98/x
  3. Step 3: Cross multiply
    29,429.78x = 40,586.19 × 21,894.98
  4. Step 4: Simplify right side
    29,429.78x = 888,633,818.33
  5. Step 5: Solve for x
    x = 888,633,818.33/29,429.78
  6. Step 6: Final answer
    x = 30,195.05

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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.