Home / 21,257.64-31,887.27-5,675.27

Finding the Fourth Proportional to 21,257.64, 31,887.27 and 5,675.27

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Solution

The fourth proportional to 21,257.64, 31,887.27 and 5,675.27 is: 8,513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257.64 : 31,887.27 = 5,675.27 : x
  2. Step 2: Convert to fraction form
    21,257.64/31,887.27 = 5,675.27/x
  3. Step 3: Cross multiply
    21,257.64x = 31,887.27 × 5,675.27
  4. Step 4: Simplify right side
    21,257.64x = 180,968,707.38
  5. Step 5: Solve for x
    x = 180,968,707.38/21,257.64
  6. Step 6: Final answer
    x = 8,513.11

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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.