Home / 25,459.70-38,200.35-12,305.30

Finding the Fourth Proportional to 25,459.70, 38,200.35 and 12,305.30

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Solution

The fourth proportional to 25,459.70, 38,200.35 and 12,305.30 is: 18,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,459.70 : 38,200.35 = 12,305.30 : x
  2. Step 2: Convert to fraction form
    25,459.70/38,200.35 = 12,305.30/x
  3. Step 3: Cross multiply
    25,459.70x = 38,200.35 × 12,305.30
  4. Step 4: Simplify right side
    25,459.70x = 470,066,766.86
  5. Step 5: Solve for x
    x = 470,066,766.86/25,459.70
  6. Step 6: Final answer
    x = 18,463.17

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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.