Home / 39,176.80-54,063.66-21,271.44

Finding the Fourth Proportional to 39,176.80, 54,063.66 and 21,271.44

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Solution

The fourth proportional to 39,176.80, 54,063.66 and 21,271.44 is: 29,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,176.80 : 54,063.66 = 21,271.44 : x
  2. Step 2: Convert to fraction form
    39,176.80/54,063.66 = 21,271.44/x
  3. Step 3: Cross multiply
    39,176.80x = 54,063.66 × 21,271.44
  4. Step 4: Simplify right side
    39,176.80x = 1,150,011,899.87
  5. Step 5: Solve for x
    x = 1,150,011,899.87/39,176.80
  6. Step 6: Final answer
    x = 29,354.41

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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.