Home / 28,886.75-43,330.13-10,418.75

Finding the Fourth Proportional to 28,886.75, 43,330.13 and 10,418.75

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Solution

The fourth proportional to 28,886.75, 43,330.13 and 10,418.75 is: 15,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.75 : 43,330.13 = 10,418.75 : x
  2. Step 2: Convert to fraction form
    28,886.75/43,330.13 = 10,418.75/x
  3. Step 3: Cross multiply
    28,886.75x = 43,330.13 × 10,418.75
  4. Step 4: Simplify right side
    28,886.75x = 451,445,791.94
  5. Step 5: Solve for x
    x = 451,445,791.94/28,886.75
  6. Step 6: Final answer
    x = 15,628.13

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1.5x scale

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.