Home / 27,777.14-38,332.54-15,201.90

Finding the Fourth Proportional to 27,777.14, 38,332.54 and 15,201.90

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Solution

The fourth proportional to 27,777.14, 38,332.54 and 15,201.90 is: 20,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,777.14 : 38,332.54 = 15,201.90 : x
  2. Step 2: Convert to fraction form
    27,777.14/38,332.54 = 15,201.90/x
  3. Step 3: Cross multiply
    27,777.14x = 38,332.54 × 15,201.90
  4. Step 4: Simplify right side
    27,777.14x = 582,727,439.83
  5. Step 5: Solve for x
    x = 582,727,439.83/27,777.14
  6. Step 6: Final answer
    x = 20,978.67

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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.