Home / 28,734.24-43,086.75-13,138.50

Finding the Fourth Proportional to 28,734.24, 43,086.75 and 13,138.50

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Solution

The fourth proportional to 28,734.24, 43,086.75 and 13,138.50 is: 19,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,734.24 : 43,086.75 = 13,138.50 : x
  2. Step 2: Convert to fraction form
    28,734.24/43,086.75 = 13,138.50/x
  3. Step 3: Cross multiply
    28,734.24x = 43,086.75 × 13,138.50
  4. Step 4: Simplify right side
    28,734.24x = 566,095,264.88
  5. Step 5: Solve for x
    x = 566,095,264.88/28,734.24
  6. Step 6: Final answer
    x = 19,701.07

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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.