Home / 28,451.44-39,283.80-18,385.84

Finding the Fourth Proportional to 28,451.44, 39,283.80 and 18,385.84

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Solution

The fourth proportional to 28,451.44, 39,283.80 and 18,385.84 is: 25,385.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.44 : 39,283.80 = 18,385.84 : x
  2. Step 2: Convert to fraction form
    28,451.44/39,283.80 = 18,385.84/x
  3. Step 3: Cross multiply
    28,451.44x = 39,283.80 × 18,385.84
  4. Step 4: Simplify right side
    28,451.44x = 722,265,661.39
  5. Step 5: Solve for x
    x = 722,265,661.39/28,451.44
  6. Step 6: Final answer
    x = 25,385.91

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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.