Home / 28,759.95-43,138.71-9,038.07

Finding the Fourth Proportional to 28,759.95, 43,138.71 and 9,038.07

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Solution

The fourth proportional to 28,759.95, 43,138.71 and 9,038.07 is: 13,556.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.95 : 43,138.71 = 9,038.07 : x
  2. Step 2: Convert to fraction form
    28,759.95/43,138.71 = 9,038.07/x
  3. Step 3: Cross multiply
    28,759.95x = 43,138.71 × 9,038.07
  4. Step 4: Simplify right side
    28,759.95x = 389,890,680.69
  5. Step 5: Solve for x
    x = 389,890,680.69/28,759.95
  6. Step 6: Final answer
    x = 13,556.72

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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.