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Finding the Fourth Proportional to 25,494.85, 35,225.13 and 20,158.12

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Solution

The fourth proportional to 25,494.85, 35,225.13 and 20,158.12 is: 27,851.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,494.85 : 35,225.13 = 20,158.12 : x
  2. Step 2: Convert to fraction form
    25,494.85/35,225.13 = 20,158.12/x
  3. Step 3: Cross multiply
    25,494.85x = 35,225.13 × 20,158.12
  4. Step 4: Simplify right side
    25,494.85x = 710,072,397.56
  5. Step 5: Solve for x
    x = 710,072,397.56/25,494.85
  6. Step 6: Final answer
    x = 27,851.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.