Home / 28,971.28-43,442.20-14,158

Finding the Fourth Proportional to 28,971.28, 43,442.20 and 14,158

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Solution

The fourth proportional to 28,971.28, 43,442.20 and 14,158 is: 21,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.28 : 43,442.20 = 14,158 : x
  2. Step 2: Convert to fraction form
    28,971.28/43,442.20 = 14,158/x
  3. Step 3: Cross multiply
    28,971.28x = 43,442.20 × 14,158
  4. Step 4: Simplify right side
    28,971.28x = 615,054,667.60
  5. Step 5: Solve for x
    x = 615,054,667.60/28,971.28
  6. Step 6: Final answer
    x = 21,229.81

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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.