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Finding the Fourth Proportional to 36,267.74, 54,368.80 and 12,888.71

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Solution

The fourth proportional to 36,267.74, 54,368.80 and 12,888.71 is: 19,321.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,267.74 : 54,368.80 = 12,888.71 : x
  2. Step 2: Convert to fraction form
    36,267.74/54,368.80 = 12,888.71/x
  3. Step 3: Cross multiply
    36,267.74x = 54,368.80 × 12,888.71
  4. Step 4: Simplify right side
    36,267.74x = 700,743,696.25
  5. Step 5: Solve for x
    x = 700,743,696.25/36,267.74
  6. Step 6: Final answer
    x = 19,321.41

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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.