Home / 19,000.36-28,485.17-7,915.38

Finding the Fourth Proportional to 19,000.36, 28,485.17 and 7,915.38

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Solution

The fourth proportional to 19,000.36, 28,485.17 and 7,915.38 is: 11,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.36 : 28,485.17 = 7,915.38 : x
  2. Step 2: Convert to fraction form
    19,000.36/28,485.17 = 7,915.38/x
  3. Step 3: Cross multiply
    19,000.36x = 28,485.17 × 7,915.38
  4. Step 4: Simplify right side
    19,000.36x = 225,470,828.20
  5. Step 5: Solve for x
    x = 225,470,828.20/19,000.36
  6. Step 6: Final answer
    x = 11,866.66

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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.