Home / 20,346.12-30,530.52-10,985.94

Finding the Fourth Proportional to 20,346.12, 30,530.52 and 10,985.94

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Solution

The fourth proportional to 20,346.12, 30,530.52 and 10,985.94 is: 16,485.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.12 : 30,530.52 = 10,985.94 : x
  2. Step 2: Convert to fraction form
    20,346.12/30,530.52 = 10,985.94/x
  3. Step 3: Cross multiply
    20,346.12x = 30,530.52 × 10,985.94
  4. Step 4: Simplify right side
    20,346.12x = 335,406,460.89
  5. Step 5: Solve for x
    x = 335,406,460.89/20,346.12
  6. Step 6: Final answer
    x = 16,485.03

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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.