Home / 36,312.42-54,479.16-12,940.68

Finding the Fourth Proportional to 36,312.42, 54,479.16 and 12,940.68

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Solution

The fourth proportional to 36,312.42, 54,479.16 and 12,940.68 is: 19,414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,312.42 : 54,479.16 = 12,940.68 : x
  2. Step 2: Convert to fraction form
    36,312.42/54,479.16 = 12,940.68/x
  3. Step 3: Cross multiply
    36,312.42x = 54,479.16 × 12,940.68
  4. Step 4: Simplify right side
    36,312.42x = 704,997,376.23
  5. Step 5: Solve for x
    x = 704,997,376.23/36,312.42
  6. Step 6: Final answer
    x = 19,414.77

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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.