Home / 38,325.78-52,896.92-21,558.78

Finding the Fourth Proportional to 38,325.78, 52,896.92 and 21,558.78

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Solution

The fourth proportional to 38,325.78, 52,896.92 and 21,558.78 is: 29,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,325.78 : 52,896.92 = 21,558.78 : x
  2. Step 2: Convert to fraction form
    38,325.78/52,896.92 = 21,558.78/x
  3. Step 3: Cross multiply
    38,325.78x = 52,896.92 × 21,558.78
  4. Step 4: Simplify right side
    38,325.78x = 1,140,392,953.16
  5. Step 5: Solve for x
    x = 1,140,392,953.16/38,325.78
  6. Step 6: Final answer
    x = 29,755.24

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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.