Home / 20,674.13-31,000.95-8,826.05

Finding the Fourth Proportional to 20,674.13, 31,000.95 and 8,826.05

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Solution

The fourth proportional to 20,674.13, 31,000.95 and 8,826.05 is: 13,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.13 : 31,000.95 = 8,826.05 : x
  2. Step 2: Convert to fraction form
    20,674.13/31,000.95 = 8,826.05/x
  3. Step 3: Cross multiply
    20,674.13x = 31,000.95 × 8,826.05
  4. Step 4: Simplify right side
    20,674.13x = 273,615,779.74
  5. Step 5: Solve for x
    x = 273,615,779.74/20,674.13
  6. Step 6: Final answer
    x = 13,234.70

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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.