Home / 25,667.40-38,455.74-17,839.56

Finding the Fourth Proportional to 25,667.40, 38,455.74 and 17,839.56

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Solution

The fourth proportional to 25,667.40, 38,455.74 and 17,839.56 is: 26,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,667.40 : 38,455.74 = 17,839.56 : x
  2. Step 2: Convert to fraction form
    25,667.40/38,455.74 = 17,839.56/x
  3. Step 3: Cross multiply
    25,667.40x = 38,455.74 × 17,839.56
  4. Step 4: Simplify right side
    25,667.40x = 686,033,481.07
  5. Step 5: Solve for x
    x = 686,033,481.07/25,667.40
  6. Step 6: Final answer
    x = 26,727.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.