Home / 42,226.05-63,339.21-12,644.04

Finding the Fourth Proportional to 42,226.05, 63,339.21 and 12,644.04

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Solution

The fourth proportional to 42,226.05, 63,339.21 and 12,644.04 is: 18,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,226.05 : 63,339.21 = 12,644.04 : x
  2. Step 2: Convert to fraction form
    42,226.05/63,339.21 = 12,644.04/x
  3. Step 3: Cross multiply
    42,226.05x = 63,339.21 × 12,644.04
  4. Step 4: Simplify right side
    42,226.05x = 800,863,504.81
  5. Step 5: Solve for x
    x = 800,863,504.81/42,226.05
  6. Step 6: Final answer
    x = 18,966.10

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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.