Home / 31,170.12-46,726.24-12,445.60

Finding the Fourth Proportional to 31,170.12, 46,726.24 and 12,445.60

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Solution

The fourth proportional to 31,170.12, 46,726.24 and 12,445.60 is: 18,656.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,170.12 : 46,726.24 = 12,445.60 : x
  2. Step 2: Convert to fraction form
    31,170.12/46,726.24 = 12,445.60/x
  3. Step 3: Cross multiply
    31,170.12x = 46,726.24 × 12,445.60
  4. Step 4: Simplify right side
    31,170.12x = 581,536,092.54
  5. Step 5: Solve for x
    x = 581,536,092.54/31,170.12
  6. Step 6: Final answer
    x = 18,656.84

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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.