Home / 31,343.12-47,014.86-7,969.58

Finding the Fourth Proportional to 31,343.12, 47,014.86 and 7,969.58

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Solution

The fourth proportional to 31,343.12, 47,014.86 and 7,969.58 is: 11,954.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,343.12 : 47,014.86 = 7,969.58 : x
  2. Step 2: Convert to fraction form
    31,343.12/47,014.86 = 7,969.58/x
  3. Step 3: Cross multiply
    31,343.12x = 47,014.86 × 7,969.58
  4. Step 4: Simplify right side
    31,343.12x = 374,688,687.96
  5. Step 5: Solve for x
    x = 374,688,687.96/31,343.12
  6. Step 6: Final answer
    x = 11,954.42

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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.