Home / 39,021.66-53,849.84-21,116.66

Finding the Fourth Proportional to 39,021.66, 53,849.84 and 21,116.66

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Solution

The fourth proportional to 39,021.66, 53,849.84 and 21,116.66 is: 29,140.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,021.66 : 53,849.84 = 21,116.66 : x
  2. Step 2: Convert to fraction form
    39,021.66/53,849.84 = 21,116.66/x
  3. Step 3: Cross multiply
    39,021.66x = 53,849.84 × 21,116.66
  4. Step 4: Simplify right side
    39,021.66x = 1,137,128,387.50
  5. Step 5: Solve for x
    x = 1,137,128,387.50/39,021.66
  6. Step 6: Final answer
    x = 29,140.95

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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.