Home / 39,340.96-54,289.84-21,436.11

Finding the Fourth Proportional to 39,340.96, 54,289.84 and 21,436.11

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Solution

The fourth proportional to 39,340.96, 54,289.84 and 21,436.11 is: 29,581.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,340.96 : 54,289.84 = 21,436.11 : x
  2. Step 2: Convert to fraction form
    39,340.96/54,289.84 = 21,436.11/x
  3. Step 3: Cross multiply
    39,340.96x = 54,289.84 × 21,436.11
  4. Step 4: Simplify right side
    39,340.96x = 1,163,762,982.12
  5. Step 5: Solve for x
    x = 1,163,762,982.12/39,340.96
  6. Step 6: Final answer
    x = 29,581.46

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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.