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Finding the Fourth Proportional to 21,944.58, 32,909.09 and 7,900.84

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Solution

The fourth proportional to 21,944.58, 32,909.09 and 7,900.84 is: 11,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944.58 : 32,909.09 = 7,900.84 : x
  2. Step 2: Convert to fraction form
    21,944.58/32,909.09 = 7,900.84/x
  3. Step 3: Cross multiply
    21,944.58x = 32,909.09 × 7,900.84
  4. Step 4: Simplify right side
    21,944.58x = 260,009,454.64
  5. Step 5: Solve for x
    x = 260,009,454.64/21,944.58
  6. Step 6: Final answer
    x = 11,848.46

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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.