Home / 20,039.08-27,644.70-12,967.80

Finding the Fourth Proportional to 20,039.08, 27,644.70 and 12,967.80

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Solution

The fourth proportional to 20,039.08, 27,644.70 and 12,967.80 is: 17,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.08 : 27,644.70 = 12,967.80 : x
  2. Step 2: Convert to fraction form
    20,039.08/27,644.70 = 12,967.80/x
  3. Step 3: Cross multiply
    20,039.08x = 27,644.70 × 12,967.80
  4. Step 4: Simplify right side
    20,039.08x = 358,490,940.66
  5. Step 5: Solve for x
    x = 358,490,940.66/20,039.08
  6. Step 6: Final answer
    x = 17,889.59

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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.