Home / 21,783.23-32,671.76-6,990.24

Finding the Fourth Proportional to 21,783.23, 32,671.76 and 6,990.24

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Solution

The fourth proportional to 21,783.23, 32,671.76 and 6,990.24 is: 10,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.23 : 32,671.76 = 6,990.24 : x
  2. Step 2: Convert to fraction form
    21,783.23/32,671.76 = 6,990.24/x
  3. Step 3: Cross multiply
    21,783.23x = 32,671.76 × 6,990.24
  4. Step 4: Simplify right side
    21,783.23x = 228,383,361.94
  5. Step 5: Solve for x
    x = 228,383,361.94/21,783.23
  6. Step 6: Final answer
    x = 10,484.37

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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.