Home / 28,103.48-42,162.90-9,636.92

Finding the Fourth Proportional to 28,103.48, 42,162.90 and 9,636.92

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Solution

The fourth proportional to 28,103.48, 42,162.90 and 9,636.92 is: 14,458.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.48 : 42,162.90 = 9,636.92 : x
  2. Step 2: Convert to fraction form
    28,103.48/42,162.90 = 9,636.92/x
  3. Step 3: Cross multiply
    28,103.48x = 42,162.90 × 9,636.92
  4. Step 4: Simplify right side
    28,103.48x = 406,320,494.27
  5. Step 5: Solve for x
    x = 406,320,494.27/28,103.48
  6. Step 6: Final answer
    x = 14,458.01

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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.