Home / 28,466.56-39,285.37-15,719.69

Finding the Fourth Proportional to 28,466.56, 39,285.37 and 15,719.69

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Solution

The fourth proportional to 28,466.56, 39,285.37 and 15,719.69 is: 21,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466.56 : 39,285.37 = 15,719.69 : x
  2. Step 2: Convert to fraction form
    28,466.56/39,285.37 = 15,719.69/x
  3. Step 3: Cross multiply
    28,466.56x = 39,285.37 × 15,719.69
  4. Step 4: Simplify right side
    28,466.56x = 617,553,837.94
  5. Step 5: Solve for x
    x = 617,553,837.94/28,466.56
  6. Step 6: Final answer
    x = 21,694.01

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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.