Home / 30,812.20-46,218.30-28,868.20

Finding the Fourth Proportional to 30,812.20, 46,218.30 and 28,868.20

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Solution

The fourth proportional to 30,812.20, 46,218.30 and 28,868.20 is: 43,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.20 : 46,218.30 = 28,868.20 : x
  2. Step 2: Convert to fraction form
    30,812.20/46,218.30 = 28,868.20/x
  3. Step 3: Cross multiply
    30,812.20x = 46,218.30 × 28,868.20
  4. Step 4: Simplify right side
    30,812.20x = 1,334,239,128.06
  5. Step 5: Solve for x
    x = 1,334,239,128.06/30,812.20
  6. Step 6: Final answer
    x = 43,302.30

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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.