Home / 28,776.85-43,162.53-12,982.93

Finding the Fourth Proportional to 28,776.85, 43,162.53 and 12,982.93

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Solution

The fourth proportional to 28,776.85, 43,162.53 and 12,982.93 is: 19,473.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.85 : 43,162.53 = 12,982.93 : x
  2. Step 2: Convert to fraction form
    28,776.85/43,162.53 = 12,982.93/x
  3. Step 3: Cross multiply
    28,776.85x = 43,162.53 × 12,982.93
  4. Step 4: Simplify right side
    28,776.85x = 560,376,105.61
  5. Step 5: Solve for x
    x = 560,376,105.61/28,776.85
  6. Step 6: Final answer
    x = 19,473.16

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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.