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Finding the Fourth Proportional to 19,777.67, 29,675.91 and 9,923.91

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Solution

The fourth proportional to 19,777.67, 29,675.91 and 9,923.91 is: 14,890.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,777.67 : 29,675.91 = 9,923.91 : x
  2. Step 2: Convert to fraction form
    19,777.67/29,675.91 = 9,923.91/x
  3. Step 3: Cross multiply
    19,777.67x = 29,675.91 × 9,923.91
  4. Step 4: Simplify right side
    19,777.67x = 294,501,060.01
  5. Step 5: Solve for x
    x = 294,501,060.01/19,777.67
  6. Step 6: Final answer
    x = 14,890.59

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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.