Home / 39,050.88-53,890.20-21,145.89

Finding the Fourth Proportional to 39,050.88, 53,890.20 and 21,145.89

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Solution

The fourth proportional to 39,050.88, 53,890.20 and 21,145.89 is: 29,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,050.88 : 53,890.20 = 21,145.89 : x
  2. Step 2: Convert to fraction form
    39,050.88/53,890.20 = 21,145.89/x
  3. Step 3: Cross multiply
    39,050.88x = 53,890.20 × 21,145.89
  4. Step 4: Simplify right side
    39,050.88x = 1,139,556,241.28
  5. Step 5: Solve for x
    x = 1,139,556,241.28/39,050.88
  6. Step 6: Final answer
    x = 29,181.32

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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.