Home / 28,130.27-42,179.61-9,400.44

Finding the Fourth Proportional to 28,130.27, 42,179.61 and 9,400.44

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Solution

The fourth proportional to 28,130.27, 42,179.61 and 9,400.44 is: 14,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.27 : 42,179.61 = 9,400.44 : x
  2. Step 2: Convert to fraction form
    28,130.27/42,179.61 = 9,400.44/x
  3. Step 3: Cross multiply
    28,130.27x = 42,179.61 × 9,400.44
  4. Step 4: Simplify right side
    28,130.27x = 396,506,893.03
  5. Step 5: Solve for x
    x = 396,506,893.03/28,130.27
  6. Step 6: Final answer
    x = 14,095.38

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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.