Home / 39,857.65-55,006.04-21,952.64

Finding the Fourth Proportional to 39,857.65, 55,006.04 and 21,952.64

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Solution

The fourth proportional to 39,857.65, 55,006.04 and 21,952.64 is: 30,296.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857.65 : 55,006.04 = 21,952.64 : x
  2. Step 2: Convert to fraction form
    39,857.65/55,006.04 = 21,952.64/x
  3. Step 3: Cross multiply
    39,857.65x = 55,006.04 × 21,952.64
  4. Step 4: Simplify right side
    39,857.65x = 1,207,527,986.34
  5. Step 5: Solve for x
    x = 1,207,527,986.34/39,857.65
  6. Step 6: Final answer
    x = 30,296.02

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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.