Home / 18,580.31-25,640.74-11,032.84

Finding the Fourth Proportional to 18,580.31, 25,640.74 and 11,032.84

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Solution

The fourth proportional to 18,580.31, 25,640.74 and 11,032.84 is: 15,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.31 : 25,640.74 = 11,032.84 : x
  2. Step 2: Convert to fraction form
    18,580.31/25,640.74 = 11,032.84/x
  3. Step 3: Cross multiply
    18,580.31x = 25,640.74 × 11,032.84
  4. Step 4: Simplify right side
    18,580.31x = 282,890,181.90
  5. Step 5: Solve for x
    x = 282,890,181.90/18,580.31
  6. Step 6: Final answer
    x = 15,225.27

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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.