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Finding the Fourth Proportional to 19,812.95, 29,570.56 and 17,132.68

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Solution

The fourth proportional to 19,812.95, 29,570.56 and 17,132.68 is: 25,570.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.95 : 29,570.56 = 17,132.68 : x
  2. Step 2: Convert to fraction form
    19,812.95/29,570.56 = 17,132.68/x
  3. Step 3: Cross multiply
    19,812.95x = 29,570.56 × 17,132.68
  4. Step 4: Simplify right side
    19,812.95x = 506,622,941.90
  5. Step 5: Solve for x
    x = 506,622,941.90/19,812.95
  6. Step 6: Final answer
    x = 25,570.29

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.