Home / 25,419.81-38,112.69-9,819.21

Finding the Fourth Proportional to 25,419.81, 38,112.69 and 9,819.21

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Solution

The fourth proportional to 25,419.81, 38,112.69 and 9,819.21 is: 14,722.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,419.81 : 38,112.69 = 9,819.21 : x
  2. Step 2: Convert to fraction form
    25,419.81/38,112.69 = 9,819.21/x
  3. Step 3: Cross multiply
    25,419.81x = 38,112.69 × 9,819.21
  4. Step 4: Simplify right side
    25,419.81x = 374,236,506.77
  5. Step 5: Solve for x
    x = 374,236,506.77/25,419.81
  6. Step 6: Final answer
    x = 14,722.24

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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.