Home / 26,626.35-39,939.75-12,586.72

Finding the Fourth Proportional to 26,626.35, 39,939.75 and 12,586.72

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Solution

The fourth proportional to 26,626.35, 39,939.75 and 12,586.72 is: 18,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,626.35 : 39,939.75 = 12,586.72 : x
  2. Step 2: Convert to fraction form
    26,626.35/39,939.75 = 12,586.72/x
  3. Step 3: Cross multiply
    26,626.35x = 39,939.75 × 12,586.72
  4. Step 4: Simplify right side
    26,626.35x = 502,710,259.73
  5. Step 5: Solve for x
    x = 502,710,259.73/26,626.35
  6. Step 6: Final answer
    x = 18,880.18

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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.