Home / 39,846.10-54,985.46-21,937.72

Finding the Fourth Proportional to 39,846.10, 54,985.46 and 21,937.72

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Solution

The fourth proportional to 39,846.10, 54,985.46 and 21,937.72 is: 30,272.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,846.10 : 54,985.46 = 21,937.72 : x
  2. Step 2: Convert to fraction form
    39,846.10/54,985.46 = 21,937.72/x
  3. Step 3: Cross multiply
    39,846.10x = 54,985.46 × 21,937.72
  4. Step 4: Simplify right side
    39,846.10x = 1,206,255,625.55
  5. Step 5: Solve for x
    x = 1,206,255,625.55/39,846.10
  6. Step 6: Final answer
    x = 30,272.87

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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.