Home / 19,771.67-27,285.59-11,275.08

Finding the Fourth Proportional to 19,771.67, 27,285.59 and 11,275.08

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Solution

The fourth proportional to 19,771.67, 27,285.59 and 11,275.08 is: 15,560.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.67 : 27,285.59 = 11,275.08 : x
  2. Step 2: Convert to fraction form
    19,771.67/27,285.59 = 11,275.08/x
  3. Step 3: Cross multiply
    19,771.67x = 27,285.59 × 11,275.08
  4. Step 4: Simplify right side
    19,771.67x = 307,647,135.96
  5. Step 5: Solve for x
    x = 307,647,135.96/19,771.67
  6. Step 6: Final answer
    x = 15,560.00

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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.