Home / 39,155.49-54,033.48-21,692.19

Finding the Fourth Proportional to 39,155.49, 54,033.48 and 21,692.19

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Solution

The fourth proportional to 39,155.49, 54,033.48 and 21,692.19 is: 29,934.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.49 : 54,033.48 = 21,692.19 : x
  2. Step 2: Convert to fraction form
    39,155.49/54,033.48 = 21,692.19/x
  3. Step 3: Cross multiply
    39,155.49x = 54,033.48 × 21,692.19
  4. Step 4: Simplify right side
    39,155.49x = 1,172,104,514.52
  5. Step 5: Solve for x
    x = 1,172,104,514.52/39,155.49
  6. Step 6: Final answer
    x = 29,934.61

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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.