Home / 21,628.46-32,427.11-13,291.25

Finding the Fourth Proportional to 21,628.46, 32,427.11 and 13,291.25

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Solution

The fourth proportional to 21,628.46, 32,427.11 and 13,291.25 is: 19,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.46 : 32,427.11 = 13,291.25 : x
  2. Step 2: Convert to fraction form
    21,628.46/32,427.11 = 13,291.25/x
  3. Step 3: Cross multiply
    21,628.46x = 32,427.11 × 13,291.25
  4. Step 4: Simplify right side
    21,628.46x = 430,996,696.88
  5. Step 5: Solve for x
    x = 430,996,696.88/21,628.46
  6. Step 6: Final answer
    x = 19,927.29

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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.