Home / 17,827.20-26,688.96-13,230.72

Finding the Fourth Proportional to 17,827.20, 26,688.96 and 13,230.72

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Solution

The fourth proportional to 17,827.20, 26,688.96 and 13,230.72 is: 19,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,827.20 : 26,688.96 = 13,230.72 : x
  2. Step 2: Convert to fraction form
    17,827.20/26,688.96 = 13,230.72/x
  3. Step 3: Cross multiply
    17,827.20x = 26,688.96 × 13,230.72
  4. Step 4: Simplify right side
    17,827.20x = 353,114,156.85
  5. Step 5: Solve for x
    x = 353,114,156.85/17,827.20
  6. Step 6: Final answer
    x = 19,807.61

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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.