Home / 31,990.08-47,990.79-15,380.22

Finding the Fourth Proportional to 31,990.08, 47,990.79 and 15,380.22

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Solution

The fourth proportional to 31,990.08, 47,990.79 and 15,380.22 is: 23,073.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.08 : 47,990.79 = 15,380.22 : x
  2. Step 2: Convert to fraction form
    31,990.08/47,990.79 = 15,380.22/x
  3. Step 3: Cross multiply
    31,990.08x = 47,990.79 × 15,380.22
  4. Step 4: Simplify right side
    31,990.08x = 738,108,908.17
  5. Step 5: Solve for x
    x = 738,108,908.17/31,990.08
  6. Step 6: Final answer
    x = 23,073.06

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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.