Home / 30,046.31-45,052.84-12,289.44

Finding the Fourth Proportional to 30,046.31, 45,052.84 and 12,289.44

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Solution

The fourth proportional to 30,046.31, 45,052.84 and 12,289.44 is: 18,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,046.31 : 45,052.84 = 12,289.44 : x
  2. Step 2: Convert to fraction form
    30,046.31/45,052.84 = 12,289.44/x
  3. Step 3: Cross multiply
    30,046.31x = 45,052.84 × 12,289.44
  4. Step 4: Simplify right side
    30,046.31x = 553,674,135.12
  5. Step 5: Solve for x
    x = 553,674,135.12/30,046.31
  6. Step 6: Final answer
    x = 18,427.36

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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.