Home / 19,761.53-29,646.72-10,405.95

Finding the Fourth Proportional to 19,761.53, 29,646.72 and 10,405.95

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Solution

The fourth proportional to 19,761.53, 29,646.72 and 10,405.95 is: 15,611.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.53 : 29,646.72 = 10,405.95 : x
  2. Step 2: Convert to fraction form
    19,761.53/29,646.72 = 10,405.95/x
  3. Step 3: Cross multiply
    19,761.53x = 29,646.72 × 10,405.95
  4. Step 4: Simplify right side
    19,761.53x = 308,502,285.98
  5. Step 5: Solve for x
    x = 308,502,285.98/19,761.53
  6. Step 6: Final answer
    x = 15,611.26

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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.