Home / 19,113.30-28,638.57-18,384.30

Finding the Fourth Proportional to 19,113.30, 28,638.57 and 18,384.30

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Solution

The fourth proportional to 19,113.30, 28,638.57 and 18,384.30 is: 27,546.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.30 : 28,638.57 = 18,384.30 : x
  2. Step 2: Convert to fraction form
    19,113.30/28,638.57 = 18,384.30/x
  3. Step 3: Cross multiply
    19,113.30x = 28,638.57 × 18,384.30
  4. Step 4: Simplify right side
    19,113.30x = 526,500,062.45
  5. Step 5: Solve for x
    x = 526,500,062.45/19,113.30
  6. Step 6: Final answer
    x = 27,546.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.