Home / 31,301.40-47,000.70-18,179.40

Finding the Fourth Proportional to 31,301.40, 47,000.70 and 18,179.40

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Solution

The fourth proportional to 31,301.40, 47,000.70 and 18,179.40 is: 27,297.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,301.40 : 47,000.70 = 18,179.40 : x
  2. Step 2: Convert to fraction form
    31,301.40/47,000.70 = 18,179.40/x
  3. Step 3: Cross multiply
    31,301.40x = 47,000.70 × 18,179.40
  4. Step 4: Simplify right side
    31,301.40x = 854,444,525.58
  5. Step 5: Solve for x
    x = 854,444,525.58/31,301.40
  6. Step 6: Final answer
    x = 27,297.33

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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.