Home / 39,157.21-54,037.01-21,252.22

Finding the Fourth Proportional to 39,157.21, 54,037.01 and 21,252.22

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Solution

The fourth proportional to 39,157.21, 54,037.01 and 21,252.22 is: 29,328.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.21 : 54,037.01 = 21,252.22 : x
  2. Step 2: Convert to fraction form
    39,157.21/54,037.01 = 21,252.22/x
  3. Step 3: Cross multiply
    39,157.21x = 54,037.01 × 21,252.22
  4. Step 4: Simplify right side
    39,157.21x = 1,148,406,183.31
  5. Step 5: Solve for x
    x = 1,148,406,183.31/39,157.21
  6. Step 6: Final answer
    x = 29,328.09

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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.