Home / 20,068.40-30,113.40-17,159.96

Finding the Fourth Proportional to 20,068.40, 30,113.40 and 17,159.96

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Solution

The fourth proportional to 20,068.40, 30,113.40 and 17,159.96 is: 25,749.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.40 : 30,113.40 = 17,159.96 : x
  2. Step 2: Convert to fraction form
    20,068.40/30,113.40 = 17,159.96/x
  3. Step 3: Cross multiply
    20,068.40x = 30,113.40 × 17,159.96
  4. Step 4: Simplify right side
    20,068.40x = 516,744,739.46
  5. Step 5: Solve for x
    x = 516,744,739.46/20,068.40
  6. Step 6: Final answer
    x = 25,749.17

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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.