Home / 39,063.35-53,907.39-21,158.34

Finding the Fourth Proportional to 39,063.35, 53,907.39 and 21,158.34

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Solution

The fourth proportional to 39,063.35, 53,907.39 and 21,158.34 is: 29,198.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,063.35 : 53,907.39 = 21,158.34 : x
  2. Step 2: Convert to fraction form
    39,063.35/53,907.39 = 21,158.34/x
  3. Step 3: Cross multiply
    39,063.35x = 53,907.39 × 21,158.34
  4. Step 4: Simplify right side
    39,063.35x = 1,140,590,886.13
  5. Step 5: Solve for x
    x = 1,140,590,886.13/39,063.35
  6. Step 6: Final answer
    x = 29,198.50

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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.