Home / 20,648.30-28,493.69-11,574.44

Finding the Fourth Proportional to 20,648.30, 28,493.69 and 11,574.44

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Solution

The fourth proportional to 20,648.30, 28,493.69 and 11,574.44 is: 15,972.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.30 : 28,493.69 = 11,574.44 : x
  2. Step 2: Convert to fraction form
    20,648.30/28,493.69 = 11,574.44/x
  3. Step 3: Cross multiply
    20,648.30x = 28,493.69 × 11,574.44
  4. Step 4: Simplify right side
    20,648.30x = 329,798,391.75
  5. Step 5: Solve for x
    x = 329,798,391.75/20,648.30
  6. Step 6: Final answer
    x = 15,972.19

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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.