Home / 21,571.14-32,343.95-8,408.15

Finding the Fourth Proportional to 21,571.14, 32,343.95 and 8,408.15

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Solution

The fourth proportional to 21,571.14, 32,343.95 and 8,408.15 is: 12,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.14 : 32,343.95 = 8,408.15 : x
  2. Step 2: Convert to fraction form
    21,571.14/32,343.95 = 8,408.15/x
  3. Step 3: Cross multiply
    21,571.14x = 32,343.95 × 8,408.15
  4. Step 4: Simplify right side
    21,571.14x = 271,952,783.19
  5. Step 5: Solve for x
    x = 271,952,783.19/21,571.14
  6. Step 6: Final answer
    x = 12,607.25

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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.