Home / 31,739.85-47,638.33-16,961.40

Finding the Fourth Proportional to 31,739.85, 47,638.33 and 16,961.40

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Solution

The fourth proportional to 31,739.85, 47,638.33 and 16,961.40 is: 25,457.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.85 : 47,638.33 = 16,961.40 : x
  2. Step 2: Convert to fraction form
    31,739.85/47,638.33 = 16,961.40/x
  3. Step 3: Cross multiply
    31,739.85x = 47,638.33 × 16,961.40
  4. Step 4: Simplify right side
    31,739.85x = 808,012,770.46
  5. Step 5: Solve for x
    x = 808,012,770.46/31,739.85
  6. Step 6: Final answer
    x = 25,457.36

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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.