Home / 39,111.52-53,974.14-21,206.37

Finding the Fourth Proportional to 39,111.52, 53,974.14 and 21,206.37

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Solution

The fourth proportional to 39,111.52, 53,974.14 and 21,206.37 is: 29,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.52 : 53,974.14 = 21,206.37 : x
  2. Step 2: Convert to fraction form
    39,111.52/53,974.14 = 21,206.37/x
  3. Step 3: Cross multiply
    39,111.52x = 53,974.14 × 21,206.37
  4. Step 4: Simplify right side
    39,111.52x = 1,144,595,583.27
  5. Step 5: Solve for x
    x = 1,144,595,583.27/39,111.52
  6. Step 6: Final answer
    x = 29,264.92

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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.