Home / 35,351.78-53,016.73-11,972.75

Finding the Fourth Proportional to 35,351.78, 53,016.73 and 11,972.75

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Solution

The fourth proportional to 35,351.78, 53,016.73 and 11,972.75 is: 17,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,351.78 : 53,016.73 = 11,972.75 : x
  2. Step 2: Convert to fraction form
    35,351.78/53,016.73 = 11,972.75/x
  3. Step 3: Cross multiply
    35,351.78x = 53,016.73 × 11,972.75
  4. Step 4: Simplify right side
    35,351.78x = 634,756,054.11
  5. Step 5: Solve for x
    x = 634,756,054.11/35,351.78
  6. Step 6: Final answer
    x = 17,955.42

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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.