Home / 19,255.31-28,835.79-15,903.05

Finding the Fourth Proportional to 19,255.31, 28,835.79 and 15,903.05

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Solution

The fourth proportional to 19,255.31, 28,835.79 and 15,903.05 is: 23,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.31 : 28,835.79 = 15,903.05 : x
  2. Step 2: Convert to fraction form
    19,255.31/28,835.79 = 15,903.05/x
  3. Step 3: Cross multiply
    19,255.31x = 28,835.79 × 15,903.05
  4. Step 4: Simplify right side
    19,255.31x = 458,577,033.75
  5. Step 5: Solve for x
    x = 458,577,033.75/19,255.31
  6. Step 6: Final answer
    x = 23,815.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.