Home / 28,090.38-42,142.86-14,049.84

Finding the Fourth Proportional to 28,090.38, 42,142.86 and 14,049.84

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Solution

The fourth proportional to 28,090.38, 42,142.86 and 14,049.84 is: 21,078.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.38 : 42,142.86 = 14,049.84 : x
  2. Step 2: Convert to fraction form
    28,090.38/42,142.86 = 14,049.84/x
  3. Step 3: Cross multiply
    28,090.38x = 42,142.86 × 14,049.84
  4. Step 4: Simplify right side
    28,090.38x = 592,100,440.14
  5. Step 5: Solve for x
    x = 592,100,440.14/28,090.38
  6. Step 6: Final answer
    x = 21,078.41

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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.