Home / 23,121.47-31,907.58-12,511.10

Finding the Fourth Proportional to 23,121.47, 31,907.58 and 12,511.10

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Solution

The fourth proportional to 23,121.47, 31,907.58 and 12,511.10 is: 17,265.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,121.47 : 31,907.58 = 12,511.10 : x
  2. Step 2: Convert to fraction form
    23,121.47/31,907.58 = 12,511.10/x
  3. Step 3: Cross multiply
    23,121.47x = 31,907.58 × 12,511.10
  4. Step 4: Simplify right side
    23,121.47x = 399,198,924.14
  5. Step 5: Solve for x
    x = 399,198,924.14/23,121.47
  6. Step 6: Final answer
    x = 17,265.29

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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.