Home / 28,466.48-39,280.08-15,891.76

Finding the Fourth Proportional to 28,466.48, 39,280.08 and 15,891.76

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Solution

The fourth proportional to 28,466.48, 39,280.08 and 15,891.76 is: 21,928.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466.48 : 39,280.08 = 15,891.76 : x
  2. Step 2: Convert to fraction form
    28,466.48/39,280.08 = 15,891.76/x
  3. Step 3: Cross multiply
    28,466.48x = 39,280.08 × 15,891.76
  4. Step 4: Simplify right side
    28,466.48x = 624,229,604.14
  5. Step 5: Solve for x
    x = 624,229,604.14/28,466.48
  6. Step 6: Final answer
    x = 21,928.58

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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.