Home / 43,679.40-65,519.12-18,703.32

Finding the Fourth Proportional to 43,679.40, 65,519.12 and 18,703.32

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Solution

The fourth proportional to 43,679.40, 65,519.12 and 18,703.32 is: 28,054.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,679.40 : 65,519.12 = 18,703.32 : x
  2. Step 2: Convert to fraction form
    43,679.40/65,519.12 = 18,703.32/x
  3. Step 3: Cross multiply
    43,679.40x = 65,519.12 × 18,703.32
  4. Step 4: Simplify right side
    43,679.40x = 1,225,425,067.48
  5. Step 5: Solve for x
    x = 1,225,425,067.48/43,679.40
  6. Step 6: Final answer
    x = 28,054.99

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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.