Home / 28,276.14-42,403.40-9,296.34

Finding the Fourth Proportional to 28,276.14, 42,403.40 and 9,296.34

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Solution

The fourth proportional to 28,276.14, 42,403.40 and 9,296.34 is: 13,940.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.14 : 42,403.40 = 9,296.34 : x
  2. Step 2: Convert to fraction form
    28,276.14/42,403.40 = 9,296.34/x
  3. Step 3: Cross multiply
    28,276.14x = 42,403.40 × 9,296.34
  4. Step 4: Simplify right side
    28,276.14x = 394,196,423.56
  5. Step 5: Solve for x
    x = 394,196,423.56/28,276.14
  6. Step 6: Final answer
    x = 13,940.96

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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.