Home / 20,843.78-31,256.44-14,975.80

Finding the Fourth Proportional to 20,843.78, 31,256.44 and 14,975.80

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Solution

The fourth proportional to 20,843.78, 31,256.44 and 14,975.80 is: 22,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.78 : 31,256.44 = 14,975.80 : x
  2. Step 2: Convert to fraction form
    20,843.78/31,256.44 = 14,975.80/x
  3. Step 3: Cross multiply
    20,843.78x = 31,256.44 × 14,975.80
  4. Step 4: Simplify right side
    20,843.78x = 468,090,194.15
  5. Step 5: Solve for x
    x = 468,090,194.15/20,843.78
  6. Step 6: Final answer
    x = 22,457.07

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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.