Home / 28,999.89-43,516.56-15,672.92

Finding the Fourth Proportional to 28,999.89, 43,516.56 and 15,672.92

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Solution

The fourth proportional to 28,999.89, 43,516.56 and 15,672.92 is: 23,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.89 : 43,516.56 = 15,672.92 : x
  2. Step 2: Convert to fraction form
    28,999.89/43,516.56 = 15,672.92/x
  3. Step 3: Cross multiply
    28,999.89x = 43,516.56 × 15,672.92
  4. Step 4: Simplify right side
    28,999.89x = 682,031,345.97
  5. Step 5: Solve for x
    x = 682,031,345.97/28,999.89
  6. Step 6: Final answer
    x = 23,518.41

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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.