Home / 27,015.36-37,247.44-20,649.84

Finding the Fourth Proportional to 27,015.36, 37,247.44 and 20,649.84

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Solution

The fourth proportional to 27,015.36, 37,247.44 and 20,649.84 is: 28,470.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.36 : 37,247.44 = 20,649.84 : x
  2. Step 2: Convert to fraction form
    27,015.36/37,247.44 = 20,649.84/x
  3. Step 3: Cross multiply
    27,015.36x = 37,247.44 × 20,649.84
  4. Step 4: Simplify right side
    27,015.36x = 769,153,676.41
  5. Step 5: Solve for x
    x = 769,153,676.41/27,015.36
  6. Step 6: Final answer
    x = 28,470.98

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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.