Home / 30,321.77-45,487.51-12,794.18

Finding the Fourth Proportional to 30,321.77, 45,487.51 and 12,794.18

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Solution

The fourth proportional to 30,321.77, 45,487.51 and 12,794.18 is: 19,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.77 : 45,487.51 = 12,794.18 : x
  2. Step 2: Convert to fraction form
    30,321.77/45,487.51 = 12,794.18/x
  3. Step 3: Cross multiply
    30,321.77x = 45,487.51 × 12,794.18
  4. Step 4: Simplify right side
    30,321.77x = 581,975,163.25
  5. Step 5: Solve for x
    x = 581,975,163.25/30,321.77
  6. Step 6: Final answer
    x = 19,193.31

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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.