Home / 31,405.08-47,116.79-12,675.56

Finding the Fourth Proportional to 31,405.08, 47,116.79 and 12,675.56

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Solution

The fourth proportional to 31,405.08, 47,116.79 and 12,675.56 is: 19,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.08 : 47,116.79 = 12,675.56 : x
  2. Step 2: Convert to fraction form
    31,405.08/47,116.79 = 12,675.56/x
  3. Step 3: Cross multiply
    31,405.08x = 47,116.79 × 12,675.56
  4. Step 4: Simplify right side
    31,405.08x = 597,231,447.22
  5. Step 5: Solve for x
    x = 597,231,447.22/31,405.08
  6. Step 6: Final answer
    x = 19,017.03

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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.