Home / 19,915.49-29,840.36-11,572.08

Finding the Fourth Proportional to 19,915.49, 29,840.36 and 11,572.08

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Solution

The fourth proportional to 19,915.49, 29,840.36 and 11,572.08 is: 17,339.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.49 : 29,840.36 = 11,572.08 : x
  2. Step 2: Convert to fraction form
    19,915.49/29,840.36 = 11,572.08/x
  3. Step 3: Cross multiply
    19,915.49x = 29,840.36 × 11,572.08
  4. Step 4: Simplify right side
    19,915.49x = 345,314,975.29
  5. Step 5: Solve for x
    x = 345,314,975.29/19,915.49
  6. Step 6: Final answer
    x = 17,339.02

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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.