Home / 30,760.94-46,116.40-12,980.12

Finding the Fourth Proportional to 30,760.94, 46,116.40 and 12,980.12

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Solution

The fourth proportional to 30,760.94, 46,116.40 and 12,980.12 is: 19,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,760.94 : 46,116.40 = 12,980.12 : x
  2. Step 2: Convert to fraction form
    30,760.94/46,116.40 = 12,980.12/x
  3. Step 3: Cross multiply
    30,760.94x = 46,116.40 × 12,980.12
  4. Step 4: Simplify right side
    30,760.94x = 598,596,405.97
  5. Step 5: Solve for x
    x = 598,596,405.97/30,760.94
  6. Step 6: Final answer
    x = 19,459.63

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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.