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Finding the Fourth Proportional to 34,015.60, 51,030.60 and 10,321.20

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Solution

The fourth proportional to 34,015.60, 51,030.60 and 10,321.20 is: 15,483.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,015.60 : 51,030.60 = 10,321.20 : x
  2. Step 2: Convert to fraction form
    34,015.60/51,030.60 = 10,321.20/x
  3. Step 3: Cross multiply
    34,015.60x = 51,030.60 × 10,321.20
  4. Step 4: Simplify right side
    34,015.60x = 526,697,028.72
  5. Step 5: Solve for x
    x = 526,697,028.72/34,015.60
  6. Step 6: Final answer
    x = 15,483.98

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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.