Home / 39,855.07-55,002.49-21,950.07

Finding the Fourth Proportional to 39,855.07, 55,002.49 and 21,950.07

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Solution

The fourth proportional to 39,855.07, 55,002.49 and 21,950.07 is: 30,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,855.07 : 55,002.49 = 21,950.07 : x
  2. Step 2: Convert to fraction form
    39,855.07/55,002.49 = 21,950.07/x
  3. Step 3: Cross multiply
    39,855.07x = 55,002.49 × 21,950.07
  4. Step 4: Simplify right side
    39,855.07x = 1,207,308,596.51
  5. Step 5: Solve for x
    x = 1,207,308,596.51/39,855.07
  6. Step 6: Final answer
    x = 30,292.47

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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.