Home / 28,446.63-39,256.37-15,871.38

Finding the Fourth Proportional to 28,446.63, 39,256.37 and 15,871.38

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Solution

The fourth proportional to 28,446.63, 39,256.37 and 15,871.38 is: 21,902.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.63 : 39,256.37 = 15,871.38 : x
  2. Step 2: Convert to fraction form
    28,446.63/39,256.37 = 15,871.38/x
  3. Step 3: Cross multiply
    28,446.63x = 39,256.37 × 15,871.38
  4. Step 4: Simplify right side
    28,446.63x = 623,052,765.69
  5. Step 5: Solve for x
    x = 623,052,765.69/28,446.63
  6. Step 6: Final answer
    x = 21,902.52

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1.5x scale

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.