Home / 28,466.82-39,283.65-15,891.30

Finding the Fourth Proportional to 28,466.82, 39,283.65 and 15,891.30

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Solution

The fourth proportional to 28,466.82, 39,283.65 and 15,891.30 is: 21,929.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466.82 : 39,283.65 = 15,891.30 : x
  2. Step 2: Convert to fraction form
    28,466.82/39,283.65 = 15,891.30/x
  3. Step 3: Cross multiply
    28,466.82x = 39,283.65 × 15,891.30
  4. Step 4: Simplify right side
    28,466.82x = 624,268,267.25
  5. Step 5: Solve for x
    x = 624,268,267.25/28,466.82
  6. Step 6: Final answer
    x = 21,929.68

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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.