Home / 31,181.71-46,779.87-21,325.63

Finding the Fourth Proportional to 31,181.71, 46,779.87 and 21,325.63

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Solution

The fourth proportional to 31,181.71, 46,779.87 and 21,325.63 is: 31,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,181.71 : 46,779.87 = 21,325.63 : x
  2. Step 2: Convert to fraction form
    31,181.71/46,779.87 = 21,325.63/x
  3. Step 3: Cross multiply
    31,181.71x = 46,779.87 × 21,325.63
  4. Step 4: Simplify right side
    31,181.71x = 997,610,199.07
  5. Step 5: Solve for x
    x = 997,610,199.07/31,181.71
  6. Step 6: Final answer
    x = 31,993.44

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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.