Home / 28,986.22-39,911.42-22,638.46

Finding the Fourth Proportional to 28,986.22, 39,911.42 and 22,638.46

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Solution

The fourth proportional to 28,986.22, 39,911.42 and 22,638.46 is: 31,171.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.22 : 39,911.42 = 22,638.46 : x
  2. Step 2: Convert to fraction form
    28,986.22/39,911.42 = 22,638.46/x
  3. Step 3: Cross multiply
    28,986.22x = 39,911.42 × 22,638.46
  4. Step 4: Simplify right side
    28,986.22x = 903,533,085.21
  5. Step 5: Solve for x
    x = 903,533,085.21/28,986.22
  6. Step 6: Final answer
    x = 31,171.12

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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.