Home / 20,933.37-28,892.93-11,985.98

Finding the Fourth Proportional to 20,933.37, 28,892.93 and 11,985.98

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Solution

The fourth proportional to 20,933.37, 28,892.93 and 11,985.98 is: 16,543.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.37 : 28,892.93 = 11,985.98 : x
  2. Step 2: Convert to fraction form
    20,933.37/28,892.93 = 11,985.98/x
  3. Step 3: Cross multiply
    20,933.37x = 28,892.93 × 11,985.98
  4. Step 4: Simplify right side
    20,933.37x = 346,309,876.73
  5. Step 5: Solve for x
    x = 346,309,876.73/20,933.37
  6. Step 6: Final answer
    x = 16,543.44

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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.