Home / 30,812.30-46,218.30-12,079.10

Finding the Fourth Proportional to 30,812.30, 46,218.30 and 12,079.10

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Solution

The fourth proportional to 30,812.30, 46,218.30 and 12,079.10 is: 18,118.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.30 : 46,218.30 = 12,079.10 : x
  2. Step 2: Convert to fraction form
    30,812.30/46,218.30 = 12,079.10/x
  3. Step 3: Cross multiply
    30,812.30x = 46,218.30 × 12,079.10
  4. Step 4: Simplify right side
    30,812.30x = 558,275,467.53
  5. Step 5: Solve for x
    x = 558,275,467.53/30,812.30
  6. Step 6: Final answer
    x = 18,118.59

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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.