Home / 39,907.63-55,070.83-21,757.96

Finding the Fourth Proportional to 39,907.63, 55,070.83 and 21,757.96

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Solution

The fourth proportional to 39,907.63, 55,070.83 and 21,757.96 is: 30,025.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,907.63 : 55,070.83 = 21,757.96 : x
  2. Step 2: Convert to fraction form
    39,907.63/55,070.83 = 21,757.96/x
  3. Step 3: Cross multiply
    39,907.63x = 55,070.83 × 21,757.96
  4. Step 4: Simplify right side
    39,907.63x = 1,198,228,916.31
  5. Step 5: Solve for x
    x = 1,198,228,916.31/39,907.63
  6. Step 6: Final answer
    x = 30,025.06

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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.