Home / 31,657.73-47,406.21-18,999.51

Finding the Fourth Proportional to 31,657.73, 47,406.21 and 18,999.51

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Solution

The fourth proportional to 31,657.73, 47,406.21 and 18,999.51 is: 28,451.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,657.73 : 47,406.21 = 18,999.51 : x
  2. Step 2: Convert to fraction form
    31,657.73/47,406.21 = 18,999.51/x
  3. Step 3: Cross multiply
    31,657.73x = 47,406.21 × 18,999.51
  4. Step 4: Simplify right side
    31,657.73x = 900,694,760.96
  5. Step 5: Solve for x
    x = 900,694,760.96/31,657.73
  6. Step 6: Final answer
    x = 28,451.03

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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.