Home / 31,621.04-47,438.40-16,827.79

Finding the Fourth Proportional to 31,621.04, 47,438.40 and 16,827.79

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Solution

The fourth proportional to 31,621.04, 47,438.40 and 16,827.79 is: 25,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.04 : 47,438.40 = 16,827.79 : x
  2. Step 2: Convert to fraction form
    31,621.04/47,438.40 = 16,827.79/x
  3. Step 3: Cross multiply
    31,621.04x = 47,438.40 × 16,827.79
  4. Step 4: Simplify right side
    31,621.04x = 798,283,433.14
  5. Step 5: Solve for x
    x = 798,283,433.14/31,621.04
  6. Step 6: Final answer
    x = 25,245.33

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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.