Home / 28,235.64-42,367.26-19,968.78

Finding the Fourth Proportional to 28,235.64, 42,367.26 and 19,968.78

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Solution

The fourth proportional to 28,235.64, 42,367.26 and 19,968.78 is: 29,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.64 : 42,367.26 = 19,968.78 : x
  2. Step 2: Convert to fraction form
    28,235.64/42,367.26 = 19,968.78/x
  3. Step 3: Cross multiply
    28,235.64x = 42,367.26 × 19,968.78
  4. Step 4: Simplify right side
    28,235.64x = 846,022,494.14
  5. Step 5: Solve for x
    x = 846,022,494.14/28,235.64
  6. Step 6: Final answer
    x = 29,962.93

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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.