Home / 19,302.24-28,969.80-7,623.72

Finding the Fourth Proportional to 19,302.24, 28,969.80 and 7,623.72

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Solution

The fourth proportional to 19,302.24, 28,969.80 and 7,623.72 is: 11,442.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.24 : 28,969.80 = 7,623.72 : x
  2. Step 2: Convert to fraction form
    19,302.24/28,969.80 = 7,623.72/x
  3. Step 3: Cross multiply
    19,302.24x = 28,969.80 × 7,623.72
  4. Step 4: Simplify right side
    19,302.24x = 220,857,643.66
  5. Step 5: Solve for x
    x = 220,857,643.66/19,302.24
  6. Step 6: Final answer
    x = 11,442.07

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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.