Home / 43,261.40-64,891.71-13,679.25

Finding the Fourth Proportional to 43,261.40, 64,891.71 and 13,679.25

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Solution

The fourth proportional to 43,261.40, 64,891.71 and 13,679.25 is: 20,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,261.40 : 64,891.71 = 13,679.25 : x
  2. Step 2: Convert to fraction form
    43,261.40/64,891.71 = 13,679.25/x
  3. Step 3: Cross multiply
    43,261.40x = 64,891.71 × 13,679.25
  4. Step 4: Simplify right side
    43,261.40x = 887,669,855.62
  5. Step 5: Solve for x
    x = 887,669,855.62/43,261.40
  6. Step 6: Final answer
    x = 20,518.75

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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.