Home / 28,119.40-38,803.59-16,183.15

Finding the Fourth Proportional to 28,119.40, 38,803.59 and 16,183.15

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Solution

The fourth proportional to 28,119.40, 38,803.59 and 16,183.15 is: 22,332.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.40 : 38,803.59 = 16,183.15 : x
  2. Step 2: Convert to fraction form
    28,119.40/38,803.59 = 16,183.15/x
  3. Step 3: Cross multiply
    28,119.40x = 38,803.59 × 16,183.15
  4. Step 4: Simplify right side
    28,119.40x = 627,964,317.51
  5. Step 5: Solve for x
    x = 627,964,317.51/28,119.40
  6. Step 6: Final answer
    x = 22,332.07

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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.