Home / 26,815.13-40,223.49-12,776.64

Finding the Fourth Proportional to 26,815.13, 40,223.49 and 12,776.64

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Solution

The fourth proportional to 26,815.13, 40,223.49 and 12,776.64 is: 19,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,815.13 : 40,223.49 = 12,776.64 : x
  2. Step 2: Convert to fraction form
    26,815.13/40,223.49 = 12,776.64/x
  3. Step 3: Cross multiply
    26,815.13x = 40,223.49 × 12,776.64
  4. Step 4: Simplify right side
    26,815.13x = 513,920,852.52
  5. Step 5: Solve for x
    x = 513,920,852.52/26,815.13
  6. Step 6: Final answer
    x = 19,165.33

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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.