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Finding the Fourth Proportional to 26,969.39, 37,220.39 and 20,151.57

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Solution

The fourth proportional to 26,969.39, 37,220.39 and 20,151.57 is: 27,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,969.39 : 37,220.39 = 20,151.57 : x
  2. Step 2: Convert to fraction form
    26,969.39/37,220.39 = 20,151.57/x
  3. Step 3: Cross multiply
    26,969.39x = 37,220.39 × 20,151.57
  4. Step 4: Simplify right side
    26,969.39x = 750,049,294.51
  5. Step 5: Solve for x
    x = 750,049,294.51/26,969.39
  6. Step 6: Final answer
    x = 27,811.13

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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.