Home / 20,982.52-28,953.30-12,484.84

Finding the Fourth Proportional to 20,982.52, 28,953.30 and 12,484.84

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Solution

The fourth proportional to 20,982.52, 28,953.30 and 12,484.84 is: 17,227.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.52 : 28,953.30 = 12,484.84 : x
  2. Step 2: Convert to fraction form
    20,982.52/28,953.30 = 12,484.84/x
  3. Step 3: Cross multiply
    20,982.52x = 28,953.30 × 12,484.84
  4. Step 4: Simplify right side
    20,982.52x = 361,477,317.97
  5. Step 5: Solve for x
    x = 361,477,317.97/20,982.52
  6. Step 6: Final answer
    x = 17,227.55

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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.