Home / 20,746.70-31,083.60-17,028.80

Finding the Fourth Proportional to 20,746.70, 31,083.60 and 17,028.80

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Solution

The fourth proportional to 20,746.70, 31,083.60 and 17,028.80 is: 25,513.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.70 : 31,083.60 = 17,028.80 : x
  2. Step 2: Convert to fraction form
    20,746.70/31,083.60 = 17,028.80/x
  3. Step 3: Cross multiply
    20,746.70x = 31,083.60 × 17,028.80
  4. Step 4: Simplify right side
    20,746.70x = 529,316,407.68
  5. Step 5: Solve for x
    x = 529,316,407.68/20,746.70
  6. Step 6: Final answer
    x = 25,513.28

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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.