Home / 21,343.03-29,451.28-11,782.30

Finding the Fourth Proportional to 21,343.03, 29,451.28 and 11,782.30

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Solution

The fourth proportional to 21,343.03, 29,451.28 and 11,782.30 is: 16,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.03 : 29,451.28 = 11,782.30 : x
  2. Step 2: Convert to fraction form
    21,343.03/29,451.28 = 11,782.30/x
  3. Step 3: Cross multiply
    21,343.03x = 29,451.28 × 11,782.30
  4. Step 4: Simplify right side
    21,343.03x = 347,003,713.26
  5. Step 5: Solve for x
    x = 347,003,713.26/21,343.03
  6. Step 6: Final answer
    x = 16,258.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.