Home / 28,187.73-42,282.90-15,698.37

Finding the Fourth Proportional to 28,187.73, 42,282.90 and 15,698.37

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Solution

The fourth proportional to 28,187.73, 42,282.90 and 15,698.37 is: 23,548.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.73 : 42,282.90 = 15,698.37 : x
  2. Step 2: Convert to fraction form
    28,187.73/42,282.90 = 15,698.37/x
  3. Step 3: Cross multiply
    28,187.73x = 42,282.90 × 15,698.37
  4. Step 4: Simplify right side
    28,187.73x = 663,772,608.87
  5. Step 5: Solve for x
    x = 663,772,608.87/28,187.73
  6. Step 6: Final answer
    x = 23,548.28

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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.