Home / 31,809.70-47,676.15-16,219.30

Finding the Fourth Proportional to 31,809.70, 47,676.15 and 16,219.30

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Solution

The fourth proportional to 31,809.70, 47,676.15 and 16,219.30 is: 24,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,809.70 : 47,676.15 = 16,219.30 : x
  2. Step 2: Convert to fraction form
    31,809.70/47,676.15 = 16,219.30/x
  3. Step 3: Cross multiply
    31,809.70x = 47,676.15 × 16,219.30
  4. Step 4: Simplify right side
    31,809.70x = 773,273,779.70
  5. Step 5: Solve for x
    x = 773,273,779.70/31,809.70
  6. Step 6: Final answer
    x = 24,309.37

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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.