Home / 25,917.96-35,784-19,939.08

Finding the Fourth Proportional to 25,917.96, 35,784 and 19,939.08

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Solution

The fourth proportional to 25,917.96, 35,784 and 19,939.08 is: 27,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,917.96 : 35,784 = 19,939.08 : x
  2. Step 2: Convert to fraction form
    25,917.96/35,784 = 19,939.08/x
  3. Step 3: Cross multiply
    25,917.96x = 35,784 × 19,939.08
  4. Step 4: Simplify right side
    25,917.96x = 713,500,038.72
  5. Step 5: Solve for x
    x = 713,500,038.72/25,917.96
  6. Step 6: Final answer
    x = 27,529.17

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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.