Home / 43,261.80-64,920-16,965.84

Finding the Fourth Proportional to 43,261.80, 64,920 and 16,965.84

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Solution

The fourth proportional to 43,261.80, 64,920 and 16,965.84 is: 25,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,261.80 : 64,920 = 16,965.84 : x
  2. Step 2: Convert to fraction form
    43,261.80/64,920 = 16,965.84/x
  3. Step 3: Cross multiply
    43,261.80x = 64,920 × 16,965.84
  4. Step 4: Simplify right side
    43,261.80x = 1,101,422,332.80
  5. Step 5: Solve for x
    x = 1,101,422,332.80/43,261.80
  6. Step 6: Final answer
    x = 25,459.47

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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.