Home / 39,655.62-54,725.94-21,751.65

Finding the Fourth Proportional to 39,655.62, 54,725.94 and 21,751.65

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Solution

The fourth proportional to 39,655.62, 54,725.94 and 21,751.65 is: 30,017.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,655.62 : 54,725.94 = 21,751.65 : x
  2. Step 2: Convert to fraction form
    39,655.62/54,725.94 = 21,751.65/x
  3. Step 3: Cross multiply
    39,655.62x = 54,725.94 × 21,751.65
  4. Step 4: Simplify right side
    39,655.62x = 1,190,379,492.80
  5. Step 5: Solve for x
    x = 1,190,379,492.80/39,655.62
  6. Step 6: Final answer
    x = 30,017.93

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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.