Home / 39,618.24-54,673.38-21,713.40

Finding the Fourth Proportional to 39,618.24, 54,673.38 and 21,713.40

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Solution

The fourth proportional to 39,618.24, 54,673.38 and 21,713.40 is: 29,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,618.24 : 54,673.38 = 21,713.40 : x
  2. Step 2: Convert to fraction form
    39,618.24/54,673.38 = 21,713.40/x
  3. Step 3: Cross multiply
    39,618.24x = 54,673.38 × 21,713.40
  4. Step 4: Simplify right side
    39,618.24x = 1,187,144,969.29
  5. Step 5: Solve for x
    x = 1,187,144,969.29/39,618.24
  6. Step 6: Final answer
    x = 29,964.61

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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.