Home / 20,464.65-28,239.64-11,510.37

Finding the Fourth Proportional to 20,464.65, 28,239.64 and 11,510.37

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Solution

The fourth proportional to 20,464.65, 28,239.64 and 11,510.37 is: 15,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.65 : 28,239.64 = 11,510.37 : x
  2. Step 2: Convert to fraction form
    20,464.65/28,239.64 = 11,510.37/x
  3. Step 3: Cross multiply
    20,464.65x = 28,239.64 × 11,510.37
  4. Step 4: Simplify right side
    20,464.65x = 325,048,676.29
  5. Step 5: Solve for x
    x = 325,048,676.29/20,464.65
  6. Step 6: Final answer
    x = 15,883.42

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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.