Home / 28,201.96-42,318.30-15,890.92

Finding the Fourth Proportional to 28,201.96, 42,318.30 and 15,890.92

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Solution

The fourth proportional to 28,201.96, 42,318.30 and 15,890.92 is: 23,845.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,201.96 : 42,318.30 = 15,890.92 : x
  2. Step 2: Convert to fraction form
    28,201.96/42,318.30 = 15,890.92/x
  3. Step 3: Cross multiply
    28,201.96x = 42,318.30 × 15,890.92
  4. Step 4: Simplify right side
    28,201.96x = 672,476,719.84
  5. Step 5: Solve for x
    x = 672,476,719.84/28,201.96
  6. Step 6: Final answer
    x = 23,845.03

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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.