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Finding the Fourth Proportional to 19,950.88, 29,900.22 and 14,422.72

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Solution

The fourth proportional to 19,950.88, 29,900.22 and 14,422.72 is: 21,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.88 : 29,900.22 = 14,422.72 : x
  2. Step 2: Convert to fraction form
    19,950.88/29,900.22 = 14,422.72/x
  3. Step 3: Cross multiply
    19,950.88x = 29,900.22 × 14,422.72
  4. Step 4: Simplify right side
    19,950.88x = 431,242,501.00
  5. Step 5: Solve for x
    x = 431,242,501.00/19,950.88
  6. Step 6: Final answer
    x = 21,615.21

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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.