Home / 31,625.93-43,663.91-19,706.78

Finding the Fourth Proportional to 31,625.93, 43,663.91 and 19,706.78

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Solution

The fourth proportional to 31,625.93, 43,663.91 and 19,706.78 is: 27,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,625.93 : 43,663.91 = 19,706.78 : x
  2. Step 2: Convert to fraction form
    31,625.93/43,663.91 = 19,706.78/x
  3. Step 3: Cross multiply
    31,625.93x = 43,663.91 × 19,706.78
  4. Step 4: Simplify right side
    31,625.93x = 860,474,751.46
  5. Step 5: Solve for x
    x = 860,474,751.46/31,625.93
  6. Step 6: Final answer
    x = 27,207.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.