Home / 28,762.70-43,129.40-13,166.96

Finding the Fourth Proportional to 28,762.70, 43,129.40 and 13,166.96

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Solution

The fourth proportional to 28,762.70, 43,129.40 and 13,166.96 is: 19,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762.70 : 43,129.40 = 13,166.96 : x
  2. Step 2: Convert to fraction form
    28,762.70/43,129.40 = 13,166.96/x
  3. Step 3: Cross multiply
    28,762.70x = 43,129.40 × 13,166.96
  4. Step 4: Simplify right side
    28,762.70x = 567,883,084.62
  5. Step 5: Solve for x
    x = 567,883,084.62/28,762.70
  6. Step 6: Final answer
    x = 19,743.73

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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.