Home / 20,647.40-30,967.84-17,159.82

Finding the Fourth Proportional to 20,647.40, 30,967.84 and 17,159.82

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Solution

The fourth proportional to 20,647.40, 30,967.84 and 17,159.82 is: 25,737.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.40 : 30,967.84 = 17,159.82 : x
  2. Step 2: Convert to fraction form
    20,647.40/30,967.84 = 17,159.82/x
  3. Step 3: Cross multiply
    20,647.40x = 30,967.84 × 17,159.82
  4. Step 4: Simplify right side
    20,647.40x = 531,402,560.19
  5. Step 5: Solve for x
    x = 531,402,560.19/20,647.40
  6. Step 6: Final answer
    x = 25,737.02

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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.