Home / 28,277.92-42,416.88-10,743.60

Finding the Fourth Proportional to 28,277.92, 42,416.88 and 10,743.60

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Solution

The fourth proportional to 28,277.92, 42,416.88 and 10,743.60 is: 16,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.92 : 42,416.88 = 10,743.60 : x
  2. Step 2: Convert to fraction form
    28,277.92/42,416.88 = 10,743.60/x
  3. Step 3: Cross multiply
    28,277.92x = 42,416.88 × 10,743.60
  4. Step 4: Simplify right side
    28,277.92x = 455,709,991.97
  5. Step 5: Solve for x
    x = 455,709,991.97/28,277.92
  6. Step 6: Final answer
    x = 16,115.40

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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.