Home / 25,450.15-35,098.21-15,890.92

Finding the Fourth Proportional to 25,450.15, 35,098.21 and 15,890.92

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Solution

The fourth proportional to 25,450.15, 35,098.21 and 15,890.92 is: 21,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,450.15 : 35,098.21 = 15,890.92 : x
  2. Step 2: Convert to fraction form
    25,450.15/35,098.21 = 15,890.92/x
  3. Step 3: Cross multiply
    25,450.15x = 35,098.21 × 15,890.92
  4. Step 4: Simplify right side
    25,450.15x = 557,742,847.25
  5. Step 5: Solve for x
    x = 557,742,847.25/25,450.15
  6. Step 6: Final answer
    x = 21,915.11

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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.