Home / 39,157.75-54,037.08-21,252.60

Finding the Fourth Proportional to 39,157.75, 54,037.08 and 21,252.60

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Solution

The fourth proportional to 39,157.75, 54,037.08 and 21,252.60 is: 29,328.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.75 : 54,037.08 = 21,252.60 : x
  2. Step 2: Convert to fraction form
    39,157.75/54,037.08 = 21,252.60/x
  3. Step 3: Cross multiply
    39,157.75x = 54,037.08 × 21,252.60
  4. Step 4: Simplify right side
    39,157.75x = 1,148,428,446.41
  5. Step 5: Solve for x
    x = 1,148,428,446.41/39,157.75
  6. Step 6: Final answer
    x = 29,328.25

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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.