Home / 13,830.10-20,740.64-4,467.91

Finding the Fourth Proportional to 13,830.10, 20,740.64 and 4,467.91

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Solution

The fourth proportional to 13,830.10, 20,740.64 and 4,467.91 is: 6,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.10 : 20,740.64 = 4,467.91 : x
  2. Step 2: Convert to fraction form
    13,830.10/20,740.64 = 4,467.91/x
  3. Step 3: Cross multiply
    13,830.10x = 20,740.64 × 4,467.91
  4. Step 4: Simplify right side
    13,830.10x = 92,667,312.86
  5. Step 5: Solve for x
    x = 92,667,312.86/13,830.10
  6. Step 6: Final answer
    x = 6,700.41

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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.