Home / 39,021.44-53,849.72-21,116.44

Finding the Fourth Proportional to 39,021.44, 53,849.72 and 21,116.44

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Solution

The fourth proportional to 39,021.44, 53,849.72 and 21,116.44 is: 29,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,021.44 : 53,849.72 = 21,116.44 : x
  2. Step 2: Convert to fraction form
    39,021.44/53,849.72 = 21,116.44/x
  3. Step 3: Cross multiply
    39,021.44x = 53,849.72 × 21,116.44
  4. Step 4: Simplify right side
    39,021.44x = 1,137,114,501.50
  5. Step 5: Solve for x
    x = 1,137,114,501.50/39,021.44
  6. Step 6: Final answer
    x = 29,140.77

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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.