Home / 23,427.78-34,991.84-21,203.22

Finding the Fourth Proportional to 23,427.78, 34,991.84 and 21,203.22

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Solution

The fourth proportional to 23,427.78, 34,991.84 and 21,203.22 is: 31,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,427.78 : 34,991.84 = 21,203.22 : x
  2. Step 2: Convert to fraction form
    23,427.78/34,991.84 = 21,203.22/x
  3. Step 3: Cross multiply
    23,427.78x = 34,991.84 × 21,203.22
  4. Step 4: Simplify right side
    23,427.78x = 741,939,575.71
  5. Step 5: Solve for x
    x = 741,939,575.71/23,427.78
  6. Step 6: Final answer
    x = 31,669.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.