Home / 43,090.64-64,589.84-20,873.52

Finding the Fourth Proportional to 43,090.64, 64,589.84 and 20,873.52

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Solution

The fourth proportional to 43,090.64, 64,589.84 and 20,873.52 is: 31,287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,090.64 : 64,589.84 = 20,873.52 : x
  2. Step 2: Convert to fraction form
    43,090.64/64,589.84 = 20,873.52/x
  3. Step 3: Cross multiply
    43,090.64x = 64,589.84 × 20,873.52
  4. Step 4: Simplify right side
    43,090.64x = 1,348,217,317.04
  5. Step 5: Solve for x
    x = 1,348,217,317.04/43,090.64
  6. Step 6: Final answer
    x = 31,287.94

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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.