Home / 25,814.64-38,722.14-11,771.76

Finding the Fourth Proportional to 25,814.64, 38,722.14 and 11,771.76

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Solution

The fourth proportional to 25,814.64, 38,722.14 and 11,771.76 is: 17,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,814.64 : 38,722.14 = 11,771.76 : x
  2. Step 2: Convert to fraction form
    25,814.64/38,722.14 = 11,771.76/x
  3. Step 3: Cross multiply
    25,814.64x = 38,722.14 × 11,771.76
  4. Step 4: Simplify right side
    25,814.64x = 455,827,738.77
  5. Step 5: Solve for x
    x = 455,827,738.77/25,814.64
  6. Step 6: Final answer
    x = 17,657.72

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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.