Home / 28,080.33-38,719.38-19,133.07

Finding the Fourth Proportional to 28,080.33, 38,719.38 and 19,133.07

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Solution

The fourth proportional to 28,080.33, 38,719.38 and 19,133.07 is: 26,382.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.33 : 38,719.38 = 19,133.07 : x
  2. Step 2: Convert to fraction form
    28,080.33/38,719.38 = 19,133.07/x
  3. Step 3: Cross multiply
    28,080.33x = 38,719.38 × 19,133.07
  4. Step 4: Simplify right side
    28,080.33x = 740,820,607.90
  5. Step 5: Solve for x
    x = 740,820,607.90/28,080.33
  6. Step 6: Final answer
    x = 26,382.19

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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.