Home / 19,945.65-27,522.81-11,445.51

Finding the Fourth Proportional to 19,945.65, 27,522.81 and 11,445.51

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Solution

The fourth proportional to 19,945.65, 27,522.81 and 11,445.51 is: 15,793.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.65 : 27,522.81 = 11,445.51 : x
  2. Step 2: Convert to fraction form
    19,945.65/27,522.81 = 11,445.51/x
  3. Step 3: Cross multiply
    19,945.65x = 27,522.81 × 11,445.51
  4. Step 4: Simplify right side
    19,945.65x = 315,012,597.08
  5. Step 5: Solve for x
    x = 315,012,597.08/19,945.65
  6. Step 6: Final answer
    x = 15,793.55

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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.