Home / 25,780.50-38,664.81-14,540.76

Finding the Fourth Proportional to 25,780.50, 38,664.81 and 14,540.76

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Solution

The fourth proportional to 25,780.50, 38,664.81 and 14,540.76 is: 21,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,780.50 : 38,664.81 = 14,540.76 : x
  2. Step 2: Convert to fraction form
    25,780.50/38,664.81 = 14,540.76/x
  3. Step 3: Cross multiply
    25,780.50x = 38,664.81 × 14,540.76
  4. Step 4: Simplify right side
    25,780.50x = 562,215,722.66
  5. Step 5: Solve for x
    x = 562,215,722.66/25,780.50
  6. Step 6: Final answer
    x = 21,807.79

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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.