Home / 25,123.75-34,670.79-13,945.75

Finding the Fourth Proportional to 25,123.75, 34,670.79 and 13,945.75

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Solution

The fourth proportional to 25,123.75, 34,670.79 and 13,945.75 is: 19,245.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,123.75 : 34,670.79 = 13,945.75 : x
  2. Step 2: Convert to fraction form
    25,123.75/34,670.79 = 13,945.75/x
  3. Step 3: Cross multiply
    25,123.75x = 34,670.79 × 13,945.75
  4. Step 4: Simplify right side
    25,123.75x = 483,510,169.64
  5. Step 5: Solve for x
    x = 483,510,169.64/25,123.75
  6. Step 6: Final answer
    x = 19,245.14

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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.