Home / 43,987.36-65,991.12-14,406.88

Finding the Fourth Proportional to 43,987.36, 65,991.12 and 14,406.88

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Solution

The fourth proportional to 43,987.36, 65,991.12 and 14,406.88 is: 21,613.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987.36 : 65,991.12 = 14,406.88 : x
  2. Step 2: Convert to fraction form
    43,987.36/65,991.12 = 14,406.88/x
  3. Step 3: Cross multiply
    43,987.36x = 65,991.12 × 14,406.88
  4. Step 4: Simplify right side
    43,987.36x = 950,726,146.91
  5. Step 5: Solve for x
    x = 950,726,146.91/43,987.36
  6. Step 6: Final answer
    x = 21,613.62

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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.