Home / 26,996.60-37,239.27-21,018.80

Finding the Fourth Proportional to 26,996.60, 37,239.27 and 21,018.80

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Solution

The fourth proportional to 26,996.60, 37,239.27 and 21,018.80 is: 28,993.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,996.60 : 37,239.27 = 21,018.80 : x
  2. Step 2: Convert to fraction form
    26,996.60/37,239.27 = 21,018.80/x
  3. Step 3: Cross multiply
    26,996.60x = 37,239.27 × 21,018.80
  4. Step 4: Simplify right side
    26,996.60x = 782,724,768.28
  5. Step 5: Solve for x
    x = 782,724,768.28/26,996.60
  6. Step 6: Final answer
    x = 28,993.46

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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.