Home / 21,745.39-32,607.80-8,424.62

Finding the Fourth Proportional to 21,745.39, 32,607.80 and 8,424.62

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Solution

The fourth proportional to 21,745.39, 32,607.80 and 8,424.62 is: 12,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,745.39 : 32,607.80 = 8,424.62 : x
  2. Step 2: Convert to fraction form
    21,745.39/32,607.80 = 8,424.62/x
  3. Step 3: Cross multiply
    21,745.39x = 32,607.80 × 8,424.62
  4. Step 4: Simplify right side
    21,745.39x = 274,708,363.43
  5. Step 5: Solve for x
    x = 274,708,363.43/21,745.39
  6. Step 6: Final answer
    x = 12,632.95

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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.