Home / 21,961.90-32,889.74-12,573.44

Finding the Fourth Proportional to 21,961.90, 32,889.74 and 12,573.44

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Solution

The fourth proportional to 21,961.90, 32,889.74 and 12,573.44 is: 18,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.90 : 32,889.74 = 12,573.44 : x
  2. Step 2: Convert to fraction form
    21,961.90/32,889.74 = 12,573.44/x
  3. Step 3: Cross multiply
    21,961.90x = 32,889.74 × 12,573.44
  4. Step 4: Simplify right side
    21,961.90x = 413,537,172.51
  5. Step 5: Solve for x
    x = 413,537,172.51/21,961.90
  6. Step 6: Final answer
    x = 18,829.75

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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.