Home / 31,983.60-47,999.40-16,393.20

Finding the Fourth Proportional to 31,983.60, 47,999.40 and 16,393.20

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Solution

The fourth proportional to 31,983.60, 47,999.40 and 16,393.20 is: 24,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,983.60 : 47,999.40 = 16,393.20 : x
  2. Step 2: Convert to fraction form
    31,983.60/47,999.40 = 16,393.20/x
  3. Step 3: Cross multiply
    31,983.60x = 47,999.40 × 16,393.20
  4. Step 4: Simplify right side
    31,983.60x = 786,863,764.08
  5. Step 5: Solve for x
    x = 786,863,764.08/31,983.60
  6. Step 6: Final answer
    x = 24,602.10

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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.