Home / 25,654.15-35,402.70-15,579.91

Finding the Fourth Proportional to 25,654.15, 35,402.70 and 15,579.91

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Solution

The fourth proportional to 25,654.15, 35,402.70 and 15,579.91 is: 21,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,654.15 : 35,402.70 = 15,579.91 : x
  2. Step 2: Convert to fraction form
    25,654.15/35,402.70 = 15,579.91/x
  3. Step 3: Cross multiply
    25,654.15x = 35,402.70 × 15,579.91
  4. Step 4: Simplify right side
    25,654.15x = 551,570,879.76
  5. Step 5: Solve for x
    x = 551,570,879.76/25,654.15
  6. Step 6: Final answer
    x = 21,500.26

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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.