Home / 19,734.63-27,255.86-15,312.03

Finding the Fourth Proportional to 19,734.63, 27,255.86 and 15,312.03

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Solution

The fourth proportional to 19,734.63, 27,255.86 and 15,312.03 is: 21,147.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,734.63 : 27,255.86 = 15,312.03 : x
  2. Step 2: Convert to fraction form
    19,734.63/27,255.86 = 15,312.03/x
  3. Step 3: Cross multiply
    19,734.63x = 27,255.86 × 15,312.03
  4. Step 4: Simplify right side
    19,734.63x = 417,342,546.00
  5. Step 5: Solve for x
    x = 417,342,546.00/19,734.63
  6. Step 6: Final answer
    x = 21,147.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.