Home / 43,588.08-65,345.40-20,231.28

Finding the Fourth Proportional to 43,588.08, 65,345.40 and 20,231.28

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Solution

The fourth proportional to 43,588.08, 65,345.40 and 20,231.28 is: 30,329.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,588.08 : 65,345.40 = 20,231.28 : x
  2. Step 2: Convert to fraction form
    43,588.08/65,345.40 = 20,231.28/x
  3. Step 3: Cross multiply
    43,588.08x = 65,345.40 × 20,231.28
  4. Step 4: Simplify right side
    43,588.08x = 1,322,021,084.11
  5. Step 5: Solve for x
    x = 1,322,021,084.11/43,588.08
  6. Step 6: Final answer
    x = 30,329.88

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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.