Home / 26,827.65-40,242.32-12,789.21

Finding the Fourth Proportional to 26,827.65, 40,242.32 and 12,789.21

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Solution

The fourth proportional to 26,827.65, 40,242.32 and 12,789.21 is: 19,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,827.65 : 40,242.32 = 12,789.21 : x
  2. Step 2: Convert to fraction form
    26,827.65/40,242.32 = 12,789.21/x
  3. Step 3: Cross multiply
    26,827.65x = 40,242.32 × 12,789.21
  4. Step 4: Simplify right side
    26,827.65x = 514,667,216.21
  5. Step 5: Solve for x
    x = 514,667,216.21/26,827.65
  6. Step 6: Final answer
    x = 19,184.21

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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.