Home / 28,466.30-39,283.49-15,891.05

Finding the Fourth Proportional to 28,466.30, 39,283.49 and 15,891.05

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Solution

The fourth proportional to 28,466.30, 39,283.49 and 15,891.05 is: 21,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466.30 : 39,283.49 = 15,891.05 : x
  2. Step 2: Convert to fraction form
    28,466.30/39,283.49 = 15,891.05/x
  3. Step 3: Cross multiply
    28,466.30x = 39,283.49 × 15,891.05
  4. Step 4: Simplify right side
    28,466.30x = 624,255,747.07
  5. Step 5: Solve for x
    x = 624,255,747.07/28,466.30
  6. Step 6: Final answer
    x = 21,929.65

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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.