Home / 21,325.32-32,150.37-19,821.96

Finding the Fourth Proportional to 21,325.32, 32,150.37 and 19,821.96

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Solution

The fourth proportional to 21,325.32, 32,150.37 and 19,821.96 is: 29,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.32 : 32,150.37 = 19,821.96 : x
  2. Step 2: Convert to fraction form
    21,325.32/32,150.37 = 19,821.96/x
  3. Step 3: Cross multiply
    21,325.32x = 32,150.37 × 19,821.96
  4. Step 4: Simplify right side
    21,325.32x = 637,283,348.13
  5. Step 5: Solve for x
    x = 637,283,348.13/21,325.32
  6. Step 6: Final answer
    x = 29,883.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.