Home / 30,083.44-45,134.88-12,558.28

Finding the Fourth Proportional to 30,083.44, 45,134.88 and 12,558.28

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Solution

The fourth proportional to 30,083.44, 45,134.88 and 12,558.28 is: 18,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,083.44 : 45,134.88 = 12,558.28 : x
  2. Step 2: Convert to fraction form
    30,083.44/45,134.88 = 12,558.28/x
  3. Step 3: Cross multiply
    30,083.44x = 45,134.88 × 12,558.28
  4. Step 4: Simplify right side
    30,083.44x = 566,816,460.81
  5. Step 5: Solve for x
    x = 566,816,460.81/30,083.44
  6. Step 6: Final answer
    x = 18,841.48

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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.