Home / 20,576.63-28,395.60-11,625.89

Finding the Fourth Proportional to 20,576.63, 28,395.60 and 11,625.89

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Solution

The fourth proportional to 20,576.63, 28,395.60 and 11,625.89 is: 16,043.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.63 : 28,395.60 = 11,625.89 : x
  2. Step 2: Convert to fraction form
    20,576.63/28,395.60 = 11,625.89/x
  3. Step 3: Cross multiply
    20,576.63x = 28,395.60 × 11,625.89
  4. Step 4: Simplify right side
    20,576.63x = 330,123,980.11
  5. Step 5: Solve for x
    x = 330,123,980.11/20,576.63
  6. Step 6: Final answer
    x = 16,043.64

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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.