Home / 19,830.75-29,736.63-11,513.06

Finding the Fourth Proportional to 19,830.75, 29,736.63 and 11,513.06

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Solution

The fourth proportional to 19,830.75, 29,736.63 and 11,513.06 is: 17,264.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.75 : 29,736.63 = 11,513.06 : x
  2. Step 2: Convert to fraction form
    19,830.75/29,736.63 = 11,513.06/x
  3. Step 3: Cross multiply
    19,830.75x = 29,736.63 × 11,513.06
  4. Step 4: Simplify right side
    19,830.75x = 342,359,605.39
  5. Step 5: Solve for x
    x = 342,359,605.39/19,830.75
  6. Step 6: Final answer
    x = 17,264.08

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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.