Home / 23,429.78-34,994.82-21,205.22

Finding the Fourth Proportional to 23,429.78, 34,994.82 and 21,205.22

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Solution

The fourth proportional to 23,429.78, 34,994.82 and 21,205.22 is: 31,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,429.78 : 34,994.82 = 21,205.22 : x
  2. Step 2: Convert to fraction form
    23,429.78/34,994.82 = 21,205.22/x
  3. Step 3: Cross multiply
    23,429.78x = 34,994.82 × 21,205.22
  4. Step 4: Simplify right side
    23,429.78x = 742,072,856.96
  5. Step 5: Solve for x
    x = 742,072,856.96/23,429.78
  6. Step 6: Final answer
    x = 31,672.21

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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.