Home / 25,665.40-35,419.62-15,055.96

Finding the Fourth Proportional to 25,665.40, 35,419.62 and 15,055.96

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Solution

The fourth proportional to 25,665.40, 35,419.62 and 15,055.96 is: 20,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.40 : 35,419.62 = 15,055.96 : x
  2. Step 2: Convert to fraction form
    25,665.40/35,419.62 = 15,055.96/x
  3. Step 3: Cross multiply
    25,665.40x = 35,419.62 × 15,055.96
  4. Step 4: Simplify right side
    25,665.40x = 533,276,381.94
  5. Step 5: Solve for x
    x = 533,276,381.94/25,665.40
  6. Step 6: Final answer
    x = 20,778.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.