Home / 28,722.67-39,634.25-15,973.81

Finding the Fourth Proportional to 28,722.67, 39,634.25 and 15,973.81

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Solution

The fourth proportional to 28,722.67, 39,634.25 and 15,973.81 is: 22,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.67 : 39,634.25 = 15,973.81 : x
  2. Step 2: Convert to fraction form
    28,722.67/39,634.25 = 15,973.81/x
  3. Step 3: Cross multiply
    28,722.67x = 39,634.25 × 15,973.81
  4. Step 4: Simplify right side
    28,722.67x = 633,109,800.04
  5. Step 5: Solve for x
    x = 633,109,800.04/28,722.67
  6. Step 6: Final answer
    x = 22,042.17

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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.