Home / 43,574.58-65,370.42-13,990.14

Finding the Fourth Proportional to 43,574.58, 65,370.42 and 13,990.14

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Solution

The fourth proportional to 43,574.58, 65,370.42 and 13,990.14 is: 20,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,574.58 : 65,370.42 = 13,990.14 : x
  2. Step 2: Convert to fraction form
    43,574.58/65,370.42 = 13,990.14/x
  3. Step 3: Cross multiply
    43,574.58x = 65,370.42 × 13,990.14
  4. Step 4: Simplify right side
    43,574.58x = 914,541,327.66
  5. Step 5: Solve for x
    x = 914,541,327.66/43,574.58
  6. Step 6: Final answer
    x = 20,987.96

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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.