Home / 21,059.25-31,588.75-5,264.20

Finding the Fourth Proportional to 21,059.25, 31,588.75 and 5,264.20

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Solution

The fourth proportional to 21,059.25, 31,588.75 and 5,264.20 is: 7,896.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.25 : 31,588.75 = 5,264.20 : x
  2. Step 2: Convert to fraction form
    21,059.25/31,588.75 = 5,264.20/x
  3. Step 3: Cross multiply
    21,059.25x = 31,588.75 × 5,264.20
  4. Step 4: Simplify right side
    21,059.25x = 166,289,471.43
  5. Step 5: Solve for x
    x = 166,289,471.43/21,059.25
  6. Step 6: Final answer
    x = 7,896.27

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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.