Home / 27,936.70-38,552.29-20,798.51

Finding the Fourth Proportional to 27,936.70, 38,552.29 and 20,798.51

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Solution

The fourth proportional to 27,936.70, 38,552.29 and 20,798.51 is: 28,701.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,936.70 : 38,552.29 = 20,798.51 : x
  2. Step 2: Convert to fraction form
    27,936.70/38,552.29 = 20,798.51/x
  3. Step 3: Cross multiply
    27,936.70x = 38,552.29 × 20,798.51
  4. Step 4: Simplify right side
    27,936.70x = 801,829,944.33
  5. Step 5: Solve for x
    x = 801,829,944.33/27,936.70
  6. Step 6: Final answer
    x = 28,701.67

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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.