Home / 19,715.61-29,499.30-11,788.95

Finding the Fourth Proportional to 19,715.61, 29,499.30 and 11,788.95

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Solution

The fourth proportional to 19,715.61, 29,499.30 and 11,788.95 is: 17,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.61 : 29,499.30 = 11,788.95 : x
  2. Step 2: Convert to fraction form
    19,715.61/29,499.30 = 11,788.95/x
  3. Step 3: Cross multiply
    19,715.61x = 29,499.30 × 11,788.95
  4. Step 4: Simplify right side
    19,715.61x = 347,765,772.74
  5. Step 5: Solve for x
    x = 347,765,772.74/19,715.61
  6. Step 6: Final answer
    x = 17,639.11

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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.