Home / 28,658.10-43,002.84-11,128.62

Finding the Fourth Proportional to 28,658.10, 43,002.84 and 11,128.62

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Solution

The fourth proportional to 28,658.10, 43,002.84 and 11,128.62 is: 16,699.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,658.10 : 43,002.84 = 11,128.62 : x
  2. Step 2: Convert to fraction form
    28,658.10/43,002.84 = 11,128.62/x
  3. Step 3: Cross multiply
    28,658.10x = 43,002.84 × 11,128.62
  4. Step 4: Simplify right side
    28,658.10x = 478,562,265.28
  5. Step 5: Solve for x
    x = 478,562,265.28/28,658.10
  6. Step 6: Final answer
    x = 16,699.02

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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.