Home / 21,811.73-32,671.63-9,975.47

Finding the Fourth Proportional to 21,811.73, 32,671.63 and 9,975.47

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Solution

The fourth proportional to 21,811.73, 32,671.63 and 9,975.47 is: 14,942.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.73 : 32,671.63 = 9,975.47 : x
  2. Step 2: Convert to fraction form
    21,811.73/32,671.63 = 9,975.47/x
  3. Step 3: Cross multiply
    21,811.73x = 32,671.63 × 9,975.47
  4. Step 4: Simplify right side
    21,811.73x = 325,914,731.92
  5. Step 5: Solve for x
    x = 325,914,731.92/21,811.73
  6. Step 6: Final answer
    x = 14,942.18

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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.