Home / 27,897.01-38,497.39-15,321.67

Finding the Fourth Proportional to 27,897.01, 38,497.39 and 15,321.67

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Solution

The fourth proportional to 27,897.01, 38,497.39 and 15,321.67 is: 21,143.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,897.01 : 38,497.39 = 15,321.67 : x
  2. Step 2: Convert to fraction form
    27,897.01/38,497.39 = 15,321.67/x
  3. Step 3: Cross multiply
    27,897.01x = 38,497.39 × 15,321.67
  4. Step 4: Simplify right side
    27,897.01x = 589,844,305.44
  5. Step 5: Solve for x
    x = 589,844,305.44/27,897.01
  6. Step 6: Final answer
    x = 21,143.64

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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.