Home / 19,718.23-29,530.20-11,372.95

Finding the Fourth Proportional to 19,718.23, 29,530.20 and 11,372.95

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Solution

The fourth proportional to 19,718.23, 29,530.20 and 11,372.95 is: 17,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.23 : 29,530.20 = 11,372.95 : x
  2. Step 2: Convert to fraction form
    19,718.23/29,530.20 = 11,372.95/x
  3. Step 3: Cross multiply
    19,718.23x = 29,530.20 × 11,372.95
  4. Step 4: Simplify right side
    19,718.23x = 335,845,357.40
  5. Step 5: Solve for x
    x = 335,845,357.40/19,718.23
  6. Step 6: Final answer
    x = 17,032.22

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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.