Home / 28,120.59-38,810.61-16,183.08

Finding the Fourth Proportional to 28,120.59, 38,810.61 and 16,183.08

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Solution

The fourth proportional to 28,120.59, 38,810.61 and 16,183.08 is: 22,335.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.59 : 38,810.61 = 16,183.08 : x
  2. Step 2: Convert to fraction form
    28,120.59/38,810.61 = 16,183.08/x
  3. Step 3: Cross multiply
    28,120.59x = 38,810.61 × 16,183.08
  4. Step 4: Simplify right side
    28,120.59x = 628,075,206.48
  5. Step 5: Solve for x
    x = 628,075,206.48/28,120.59
  6. Step 6: Final answer
    x = 22,335.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.