Home / 23,059.14-31,815.96-15,387.32

Finding the Fourth Proportional to 23,059.14, 31,815.96 and 15,387.32

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Solution

The fourth proportional to 23,059.14, 31,815.96 and 15,387.32 is: 21,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,059.14 : 31,815.96 = 15,387.32 : x
  2. Step 2: Convert to fraction form
    23,059.14/31,815.96 = 15,387.32/x
  3. Step 3: Cross multiply
    23,059.14x = 31,815.96 × 15,387.32
  4. Step 4: Simplify right side
    23,059.14x = 489,562,379.46
  5. Step 5: Solve for x
    x = 489,562,379.46/23,059.14
  6. Step 6: Final answer
    x = 21,230.73

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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.