Home / 28,339.38-42,477.90-11,690.32

Finding the Fourth Proportional to 28,339.38, 42,477.90 and 11,690.32

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Solution

The fourth proportional to 28,339.38, 42,477.90 and 11,690.32 is: 17,522.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339.38 : 42,477.90 = 11,690.32 : x
  2. Step 2: Convert to fraction form
    28,339.38/42,477.90 = 11,690.32/x
  3. Step 3: Cross multiply
    28,339.38x = 42,477.90 × 11,690.32
  4. Step 4: Simplify right side
    28,339.38x = 496,580,243.93
  5. Step 5: Solve for x
    x = 496,580,243.93/28,339.38
  6. Step 6: Final answer
    x = 17,522.62

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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.