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Finding the Fourth Proportional to 20,323.68, 30,483.80 and 6,995.58

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Solution

The fourth proportional to 20,323.68, 30,483.80 and 6,995.58 is: 10,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.68 : 30,483.80 = 6,995.58 : x
  2. Step 2: Convert to fraction form
    20,323.68/30,483.80 = 6,995.58/x
  3. Step 3: Cross multiply
    20,323.68x = 30,483.80 × 6,995.58
  4. Step 4: Simplify right side
    20,323.68x = 213,251,826.63
  5. Step 5: Solve for x
    x = 213,251,826.63/20,323.68
  6. Step 6: Final answer
    x = 10,492.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.