Home / 21,972.56-32,944.20-11,416.64

Finding the Fourth Proportional to 21,972.56, 32,944.20 and 11,416.64

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Solution

The fourth proportional to 21,972.56, 32,944.20 and 11,416.64 is: 17,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.56 : 32,944.20 = 11,416.64 : x
  2. Step 2: Convert to fraction form
    21,972.56/32,944.20 = 11,416.64/x
  3. Step 3: Cross multiply
    21,972.56x = 32,944.20 × 11,416.64
  4. Step 4: Simplify right side
    21,972.56x = 376,112,071.49
  5. Step 5: Solve for x
    x = 376,112,071.49/21,972.56
  6. Step 6: Final answer
    x = 17,117.35

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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.