Home / 20,237.51-27,945.38-12,696.80

Finding the Fourth Proportional to 20,237.51, 27,945.38 and 12,696.80

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Solution

The fourth proportional to 20,237.51, 27,945.38 and 12,696.80 is: 17,532.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.51 : 27,945.38 = 12,696.80 : x
  2. Step 2: Convert to fraction form
    20,237.51/27,945.38 = 12,696.80/x
  3. Step 3: Cross multiply
    20,237.51x = 27,945.38 × 12,696.80
  4. Step 4: Simplify right side
    20,237.51x = 354,816,697.57
  5. Step 5: Solve for x
    x = 354,816,697.57/20,237.51
  6. Step 6: Final answer
    x = 17,532.63

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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.