Home / 27,917.08-38,485.74-19,956.40

Finding the Fourth Proportional to 27,917.08, 38,485.74 and 19,956.40

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Solution

The fourth proportional to 27,917.08, 38,485.74 and 19,956.40 is: 27,511.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,917.08 : 38,485.74 = 19,956.40 : x
  2. Step 2: Convert to fraction form
    27,917.08/38,485.74 = 19,956.40/x
  3. Step 3: Cross multiply
    27,917.08x = 38,485.74 × 19,956.40
  4. Step 4: Simplify right side
    27,917.08x = 768,036,821.74
  5. Step 5: Solve for x
    x = 768,036,821.74/27,917.08
  6. Step 6: Final answer
    x = 27,511.36

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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.