Home / 39,131.04-54,000.52-21,226

Finding the Fourth Proportional to 39,131.04, 54,000.52 and 21,226

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Solution

The fourth proportional to 39,131.04, 54,000.52 and 21,226 is: 29,291.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,131.04 : 54,000.52 = 21,226 : x
  2. Step 2: Convert to fraction form
    39,131.04/54,000.52 = 21,226/x
  3. Step 3: Cross multiply
    39,131.04x = 54,000.52 × 21,226
  4. Step 4: Simplify right side
    39,131.04x = 1,146,215,037.52
  5. Step 5: Solve for x
    x = 1,146,215,037.52/39,131.04
  6. Step 6: Final answer
    x = 29,291.71

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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.