Home / 16,281.28-24,421.65-5,187.82

Finding the Fourth Proportional to 16,281.28, 24,421.65 and 5,187.82

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Solution

The fourth proportional to 16,281.28, 24,421.65 and 5,187.82 is: 7,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,281.28 : 24,421.65 = 5,187.82 : x
  2. Step 2: Convert to fraction form
    16,281.28/24,421.65 = 5,187.82/x
  3. Step 3: Cross multiply
    16,281.28x = 24,421.65 × 5,187.82
  4. Step 4: Simplify right side
    16,281.28x = 126,695,128.49
  5. Step 5: Solve for x
    x = 126,695,128.49/16,281.28
  6. Step 6: Final answer
    x = 7,781.64

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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.