Home / 31,416.68-47,062.74-18,939.98

Finding the Fourth Proportional to 31,416.68, 47,062.74 and 18,939.98

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Solution

The fourth proportional to 31,416.68, 47,062.74 and 18,939.98 is: 28,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,416.68 : 47,062.74 = 18,939.98 : x
  2. Step 2: Convert to fraction form
    31,416.68/47,062.74 = 18,939.98/x
  3. Step 3: Cross multiply
    31,416.68x = 47,062.74 × 18,939.98
  4. Step 4: Simplify right side
    31,416.68x = 891,367,354.35
  5. Step 5: Solve for x
    x = 891,367,354.35/31,416.68
  6. Step 6: Final answer
    x = 28,372.42

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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.