Home / 39,765.14-54,874.50-21,860.03

Finding the Fourth Proportional to 39,765.14, 54,874.50 and 21,860.03

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Solution

The fourth proportional to 39,765.14, 54,874.50 and 21,860.03 is: 30,166.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.14 : 54,874.50 = 21,860.03 : x
  2. Step 2: Convert to fraction form
    39,765.14/54,874.50 = 21,860.03/x
  3. Step 3: Cross multiply
    39,765.14x = 54,874.50 × 21,860.03
  4. Step 4: Simplify right side
    39,765.14x = 1,199,558,216.24
  5. Step 5: Solve for x
    x = 1,199,558,216.24/39,765.14
  6. Step 6: Final answer
    x = 30,166.08

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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.