Home / 34,172.56-51,258.40-28,316.90

Finding the Fourth Proportional to 34,172.56, 51,258.40 and 28,316.90

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Solution

The fourth proportional to 34,172.56, 51,258.40 and 28,316.90 is: 42,474.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,172.56 : 51,258.40 = 28,316.90 : x
  2. Step 2: Convert to fraction form
    34,172.56/51,258.40 = 28,316.90/x
  3. Step 3: Cross multiply
    34,172.56x = 51,258.40 × 28,316.90
  4. Step 4: Simplify right side
    34,172.56x = 1,451,478,986.96
  5. Step 5: Solve for x
    x = 1,451,478,986.96/34,172.56
  6. Step 6: Final answer
    x = 42,474.99

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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.