Home / 39,209.27-54,109.58-21,305.43

Finding the Fourth Proportional to 39,209.27, 54,109.58 and 21,305.43

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Solution

The fourth proportional to 39,209.27, 54,109.58 and 21,305.43 is: 29,401.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,209.27 : 54,109.58 = 21,305.43 : x
  2. Step 2: Convert to fraction form
    39,209.27/54,109.58 = 21,305.43/x
  3. Step 3: Cross multiply
    39,209.27x = 54,109.58 × 21,305.43
  4. Step 4: Simplify right side
    39,209.27x = 1,152,827,869.02
  5. Step 5: Solve for x
    x = 1,152,827,869.02/39,209.27
  6. Step 6: Final answer
    x = 29,401.92

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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.