Home / 43,658.04-65,432.26-18,668.69

Finding the Fourth Proportional to 43,658.04, 65,432.26 and 18,668.69

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Solution

The fourth proportional to 43,658.04, 65,432.26 and 18,668.69 is: 27,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,658.04 : 65,432.26 = 18,668.69 : x
  2. Step 2: Convert to fraction form
    43,658.04/65,432.26 = 18,668.69/x
  3. Step 3: Cross multiply
    43,658.04x = 65,432.26 × 18,668.69
  4. Step 4: Simplify right side
    43,658.04x = 1,221,534,577.94
  5. Step 5: Solve for x
    x = 1,221,534,577.94/43,658.04
  6. Step 6: Final answer
    x = 27,979.60

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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.