Home / 20,576.05-28,395.53-11,623.93

Finding the Fourth Proportional to 20,576.05, 28,395.53 and 11,623.93

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Solution

The fourth proportional to 20,576.05, 28,395.53 and 11,623.93 is: 16,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.05 : 28,395.53 = 11,623.93 : x
  2. Step 2: Convert to fraction form
    20,576.05/28,395.53 = 11,623.93/x
  3. Step 3: Cross multiply
    20,576.05x = 28,395.53 × 11,623.93
  4. Step 4: Simplify right side
    20,576.05x = 330,067,611.10
  5. Step 5: Solve for x
    x = 330,067,611.10/20,576.05
  6. Step 6: Final answer
    x = 16,041.35

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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.