Home / 43,009.80-64,452.18-18,964.86

Finding the Fourth Proportional to 43,009.80, 64,452.18 and 18,964.86

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Solution

The fourth proportional to 43,009.80, 64,452.18 and 18,964.86 is: 28,419.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009.80 : 64,452.18 = 18,964.86 : x
  2. Step 2: Convert to fraction form
    43,009.80/64,452.18 = 18,964.86/x
  3. Step 3: Cross multiply
    43,009.80x = 64,452.18 × 18,964.86
  4. Step 4: Simplify right side
    43,009.80x = 1,222,326,570.39
  5. Step 5: Solve for x
    x = 1,222,326,570.39/43,009.80
  6. Step 6: Final answer
    x = 28,419.72

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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.