Home / 21,424.05-32,145.27-8,285.64

Finding the Fourth Proportional to 21,424.05, 32,145.27 and 8,285.64

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Solution

The fourth proportional to 21,424.05, 32,145.27 and 8,285.64 is: 12,432.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.05 : 32,145.27 = 8,285.64 : x
  2. Step 2: Convert to fraction form
    21,424.05/32,145.27 = 8,285.64/x
  3. Step 3: Cross multiply
    21,424.05x = 32,145.27 × 8,285.64
  4. Step 4: Simplify right side
    21,424.05x = 266,344,134.92
  5. Step 5: Solve for x
    x = 266,344,134.92/21,424.05
  6. Step 6: Final answer
    x = 12,432.02

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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.