Home / 28,707.58-39,618.68-17,222.92

Finding the Fourth Proportional to 28,707.58, 39,618.68 and 17,222.92

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Solution

The fourth proportional to 28,707.58, 39,618.68 and 17,222.92 is: 23,768.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.58 : 39,618.68 = 17,222.92 : x
  2. Step 2: Convert to fraction form
    28,707.58/39,618.68 = 17,222.92/x
  3. Step 3: Cross multiply
    28,707.58x = 39,618.68 × 17,222.92
  4. Step 4: Simplify right side
    28,707.58x = 682,349,386.57
  5. Step 5: Solve for x
    x = 682,349,386.57/28,707.58
  6. Step 6: Final answer
    x = 23,768.96

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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.