Home / 27,945.31-41,945.51-20,528.95

Finding the Fourth Proportional to 27,945.31, 41,945.51 and 20,528.95

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Solution

The fourth proportional to 27,945.31, 41,945.51 and 20,528.95 is: 30,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.31 : 41,945.51 = 20,528.95 : x
  2. Step 2: Convert to fraction form
    27,945.31/41,945.51 = 20,528.95/x
  3. Step 3: Cross multiply
    27,945.31x = 41,945.51 × 20,528.95
  4. Step 4: Simplify right side
    27,945.31x = 861,097,277.51
  5. Step 5: Solve for x
    x = 861,097,277.51/27,945.31
  6. Step 6: Final answer
    x = 30,813.66

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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.