Home / 31,181.52-46,743.12-11,454.78

Finding the Fourth Proportional to 31,181.52, 46,743.12 and 11,454.78

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Solution

The fourth proportional to 31,181.52, 46,743.12 and 11,454.78 is: 17,171.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,181.52 : 46,743.12 = 11,454.78 : x
  2. Step 2: Convert to fraction form
    31,181.52/46,743.12 = 11,454.78/x
  3. Step 3: Cross multiply
    31,181.52x = 46,743.12 × 11,454.78
  4. Step 4: Simplify right side
    31,181.52x = 535,432,156.11
  5. Step 5: Solve for x
    x = 535,432,156.11/31,181.52
  6. Step 6: Final answer
    x = 17,171.46

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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.