Home / 28,921.04-39,892.56-22,195.52

Finding the Fourth Proportional to 28,921.04, 39,892.56 and 22,195.52

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Solution

The fourth proportional to 28,921.04, 39,892.56 and 22,195.52 is: 30,615.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.04 : 39,892.56 = 22,195.52 : x
  2. Step 2: Convert to fraction form
    28,921.04/39,892.56 = 22,195.52/x
  3. Step 3: Cross multiply
    28,921.04x = 39,892.56 × 22,195.52
  4. Step 4: Simplify right side
    28,921.04x = 885,436,113.33
  5. Step 5: Solve for x
    x = 885,436,113.33/28,921.04
  6. Step 6: Final answer
    x = 30,615.64

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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.