Home / 25,705.56-38,531.52-12,539.84

Finding the Fourth Proportional to 25,705.56, 38,531.52 and 12,539.84

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Solution

The fourth proportional to 25,705.56, 38,531.52 and 12,539.84 is: 18,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,705.56 : 38,531.52 = 12,539.84 : x
  2. Step 2: Convert to fraction form
    25,705.56/38,531.52 = 12,539.84/x
  3. Step 3: Cross multiply
    25,705.56x = 38,531.52 × 12,539.84
  4. Step 4: Simplify right side
    25,705.56x = 483,179,095.76
  5. Step 5: Solve for x
    x = 483,179,095.76/25,705.56
  6. Step 6: Final answer
    x = 18,796.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.