Home / 43,518-65,281.80-13,928.88

Finding the Fourth Proportional to 43,518, 65,281.80 and 13,928.88

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Solution

The fourth proportional to 43,518, 65,281.80 and 13,928.88 is: 20,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,518 : 65,281.80 = 13,928.88 : x
  2. Step 2: Convert to fraction form
    43,518/65,281.80 = 13,928.88/x
  3. Step 3: Cross multiply
    43,518x = 65,281.80 × 13,928.88
  4. Step 4: Simplify right side
    43,518x = 909,302,358.38
  5. Step 5: Solve for x
    x = 909,302,358.38/43,518
  6. Step 6: Final answer
    x = 20,894.86

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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.