Home / 20,427.90-30,633.92-7,946.26

Finding the Fourth Proportional to 20,427.90, 30,633.92 and 7,946.26

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Solution

The fourth proportional to 20,427.90, 30,633.92 and 7,946.26 is: 11,916.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427.90 : 30,633.92 = 7,946.26 : x
  2. Step 2: Convert to fraction form
    20,427.90/30,633.92 = 7,946.26/x
  3. Step 3: Cross multiply
    20,427.90x = 30,633.92 × 7,946.26
  4. Step 4: Simplify right side
    20,427.90x = 243,425,093.14
  5. Step 5: Solve for x
    x = 243,425,093.14/20,427.90
  6. Step 6: Final answer
    x = 11,916.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.