Home / 31,181.46-46,779.50-21,325.38

Finding the Fourth Proportional to 31,181.46, 46,779.50 and 21,325.38

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Solution

The fourth proportional to 31,181.46, 46,779.50 and 21,325.38 is: 31,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,181.46 : 46,779.50 = 21,325.38 : x
  2. Step 2: Convert to fraction form
    31,181.46/46,779.50 = 21,325.38/x
  3. Step 3: Cross multiply
    31,181.46x = 46,779.50 × 21,325.38
  4. Step 4: Simplify right side
    31,181.46x = 997,590,507.08
  5. Step 5: Solve for x
    x = 997,590,507.08/31,181.46
  6. Step 6: Final answer
    x = 31,993.07

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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.