Home / 27,208.36-40,719.39-18,897.76

Finding the Fourth Proportional to 27,208.36, 40,719.39 and 18,897.76

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Solution

The fourth proportional to 27,208.36, 40,719.39 and 18,897.76 is: 28,281.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,208.36 : 40,719.39 = 18,897.76 : x
  2. Step 2: Convert to fraction form
    27,208.36/40,719.39 = 18,897.76/x
  3. Step 3: Cross multiply
    27,208.36x = 40,719.39 × 18,897.76
  4. Step 4: Simplify right side
    27,208.36x = 769,505,259.57
  5. Step 5: Solve for x
    x = 769,505,259.57/27,208.36
  6. Step 6: Final answer
    x = 28,281.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.