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Finding the Fourth Proportional to 19,871.60, 29,806.52 and 12,064.01

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Solution

The fourth proportional to 19,871.60, 29,806.52 and 12,064.01 is: 18,095.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.60 : 29,806.52 = 12,064.01 : x
  2. Step 2: Convert to fraction form
    19,871.60/29,806.52 = 12,064.01/x
  3. Step 3: Cross multiply
    19,871.60x = 29,806.52 × 12,064.01
  4. Step 4: Simplify right side
    19,871.60x = 359,585,945.99
  5. Step 5: Solve for x
    x = 359,585,945.99/19,871.60
  6. Step 6: Final answer
    x = 18,095.47

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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.