Home / 31,779.10-43,857.23-18,350.92

Finding the Fourth Proportional to 31,779.10, 43,857.23 and 18,350.92

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Solution

The fourth proportional to 31,779.10, 43,857.23 and 18,350.92 is: 25,325.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.10 : 43,857.23 = 18,350.92 : x
  2. Step 2: Convert to fraction form
    31,779.10/43,857.23 = 18,350.92/x
  3. Step 3: Cross multiply
    31,779.10x = 43,857.23 × 18,350.92
  4. Step 4: Simplify right side
    31,779.10x = 804,820,299.87
  5. Step 5: Solve for x
    x = 804,820,299.87/31,779.10
  6. Step 6: Final answer
    x = 25,325.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.