Home / 20,499.54-28,292.04-11,548.77

Finding the Fourth Proportional to 20,499.54, 28,292.04 and 11,548.77

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Solution

The fourth proportional to 20,499.54, 28,292.04 and 11,548.77 is: 15,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499.54 : 28,292.04 = 11,548.77 : x
  2. Step 2: Convert to fraction form
    20,499.54/28,292.04 = 11,548.77/x
  3. Step 3: Cross multiply
    20,499.54x = 28,292.04 × 11,548.77
  4. Step 4: Simplify right side
    20,499.54x = 326,738,262.79
  5. Step 5: Solve for x
    x = 326,738,262.79/20,499.54
  6. Step 6: Final answer
    x = 15,938.81

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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.