Home / 57,015.90-85,463.37-21,940.38

Finding the Fourth Proportional to 57,015.90, 85,463.37 and 21,940.38

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Solution

The fourth proportional to 57,015.90, 85,463.37 and 21,940.38 is: 32,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,015.90 : 85,463.37 = 21,940.38 : x
  2. Step 2: Convert to fraction form
    57,015.90/85,463.37 = 21,940.38/x
  3. Step 3: Cross multiply
    57,015.90x = 85,463.37 × 21,940.38
  4. Step 4: Simplify right side
    57,015.90x = 1,875,098,813.88
  5. Step 5: Solve for x
    x = 1,875,098,813.88/57,015.90
  6. Step 6: Final answer
    x = 32,887.30

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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.