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Finding the Fourth Proportional to 25,257.75, 34,856.78 and 14,079.75

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Solution

The fourth proportional to 25,257.75, 34,856.78 and 14,079.75 is: 19,430.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,257.75 : 34,856.78 = 14,079.75 : x
  2. Step 2: Convert to fraction form
    25,257.75/34,856.78 = 14,079.75/x
  3. Step 3: Cross multiply
    25,257.75x = 34,856.78 × 14,079.75
  4. Step 4: Simplify right side
    25,257.75x = 490,774,677.81
  5. Step 5: Solve for x
    x = 490,774,677.81/25,257.75
  6. Step 6: Final answer
    x = 19,430.66

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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.