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Finding the Fourth Proportional to 19,776.19, 29,666.90 and 7,304.98

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Solution

The fourth proportional to 19,776.19, 29,666.90 and 7,304.98 is: 10,958.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.19 : 29,666.90 = 7,304.98 : x
  2. Step 2: Convert to fraction form
    19,776.19/29,666.90 = 7,304.98/x
  3. Step 3: Cross multiply
    19,776.19x = 29,666.90 × 7,304.98
  4. Step 4: Simplify right side
    19,776.19x = 216,716,111.16
  5. Step 5: Solve for x
    x = 216,716,111.16/19,776.19
  6. Step 6: Final answer
    x = 10,958.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.