Home / 39,812.18-54,941.92-21,907.04

Finding the Fourth Proportional to 39,812.18, 54,941.92 and 21,907.04

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Solution

The fourth proportional to 39,812.18, 54,941.92 and 21,907.04 is: 30,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.18 : 54,941.92 = 21,907.04 : x
  2. Step 2: Convert to fraction form
    39,812.18/54,941.92 = 21,907.04/x
  3. Step 3: Cross multiply
    39,812.18x = 54,941.92 × 21,907.04
  4. Step 4: Simplify right side
    39,812.18x = 1,203,614,509.64
  5. Step 5: Solve for x
    x = 1,203,614,509.64/39,812.18
  6. Step 6: Final answer
    x = 30,232.32

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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.