Home / 28,991.76-39,708.81-27,289.53

Finding the Fourth Proportional to 28,991.76, 39,708.81 and 27,289.53

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Solution

The fourth proportional to 28,991.76, 39,708.81 and 27,289.53 is: 37,377.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.76 : 39,708.81 = 27,289.53 : x
  2. Step 2: Convert to fraction form
    28,991.76/39,708.81 = 27,289.53/x
  3. Step 3: Cross multiply
    28,991.76x = 39,708.81 × 27,289.53
  4. Step 4: Simplify right side
    28,991.76x = 1,083,634,761.76
  5. Step 5: Solve for x
    x = 1,083,634,761.76/28,991.76
  6. Step 6: Final answer
    x = 37,377.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.