Home / 27,768.46-38,320.36-15,021.64

Finding the Fourth Proportional to 27,768.46, 38,320.36 and 15,021.64

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Solution

The fourth proportional to 27,768.46, 38,320.36 and 15,021.64 is: 20,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,768.46 : 38,320.36 = 15,021.64 : x
  2. Step 2: Convert to fraction form
    27,768.46/38,320.36 = 15,021.64/x
  3. Step 3: Cross multiply
    27,768.46x = 38,320.36 × 15,021.64
  4. Step 4: Simplify right side
    27,768.46x = 575,634,652.59
  5. Step 5: Solve for x
    x = 575,634,652.59/27,768.46
  6. Step 6: Final answer
    x = 20,729.80

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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.