Home / 43,001.14-64,485.31-20,507.85

Finding the Fourth Proportional to 43,001.14, 64,485.31 and 20,507.85

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Solution

The fourth proportional to 43,001.14, 64,485.31 and 20,507.85 is: 30,753.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,001.14 : 64,485.31 = 20,507.85 : x
  2. Step 2: Convert to fraction form
    43,001.14/64,485.31 = 20,507.85/x
  3. Step 3: Cross multiply
    43,001.14x = 64,485.31 × 20,507.85
  4. Step 4: Simplify right side
    43,001.14x = 1,322,455,064.68
  5. Step 5: Solve for x
    x = 1,322,455,064.68/43,001.14
  6. Step 6: Final answer
    x = 30,753.95

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1.5x scale

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.