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Finding the Fourth Proportional to 25,066.40, 34,591.56 and 13,888.40

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Solution

The fourth proportional to 25,066.40, 34,591.56 and 13,888.40 is: 19,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,066.40 : 34,591.56 = 13,888.40 : x
  2. Step 2: Convert to fraction form
    25,066.40/34,591.56 = 13,888.40/x
  3. Step 3: Cross multiply
    25,066.40x = 34,591.56 × 13,888.40
  4. Step 4: Simplify right side
    25,066.40x = 480,421,421.90
  5. Step 5: Solve for x
    x = 480,421,421.90/25,066.40
  6. Step 6: Final answer
    x = 19,165.95

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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.