Home / 20,160.06-30,240.14-6,120.19

Finding the Fourth Proportional to 20,160.06, 30,240.14 and 6,120.19

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Solution

The fourth proportional to 20,160.06, 30,240.14 and 6,120.19 is: 9,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.06 : 30,240.14 = 6,120.19 : x
  2. Step 2: Convert to fraction form
    20,160.06/30,240.14 = 6,120.19/x
  3. Step 3: Cross multiply
    20,160.06x = 30,240.14 × 6,120.19
  4. Step 4: Simplify right side
    20,160.06x = 185,075,409.63
  5. Step 5: Solve for x
    x = 185,075,409.63/20,160.06
  6. Step 6: Final answer
    x = 9,180.30

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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.