Home / 25,770.64-38,663.34-12,626.86

Finding the Fourth Proportional to 25,770.64, 38,663.34 and 12,626.86

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Solution

The fourth proportional to 25,770.64, 38,663.34 and 12,626.86 is: 18,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,770.64 : 38,663.34 = 12,626.86 : x
  2. Step 2: Convert to fraction form
    25,770.64/38,663.34 = 12,626.86/x
  3. Step 3: Cross multiply
    25,770.64x = 38,663.34 × 12,626.86
  4. Step 4: Simplify right side
    25,770.64x = 488,196,581.31
  5. Step 5: Solve for x
    x = 488,196,581.31/25,770.64
  6. Step 6: Final answer
    x = 18,943.91

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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.