Home / 19,428.61-29,157.09-7,745.17

Finding the Fourth Proportional to 19,428.61, 29,157.09 and 7,745.17

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Solution

The fourth proportional to 19,428.61, 29,157.09 and 7,745.17 is: 11,623.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.61 : 29,157.09 = 7,745.17 : x
  2. Step 2: Convert to fraction form
    19,428.61/29,157.09 = 7,745.17/x
  3. Step 3: Cross multiply
    19,428.61x = 29,157.09 × 7,745.17
  4. Step 4: Simplify right side
    19,428.61x = 225,826,618.76
  5. Step 5: Solve for x
    x = 225,826,618.76/19,428.61
  6. Step 6: Final answer
    x = 11,623.41

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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.