Home / 21,960.64-32,932.80-13,628.32

Finding the Fourth Proportional to 21,960.64, 32,932.80 and 13,628.32

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Solution

The fourth proportional to 21,960.64, 32,932.80 and 13,628.32 is: 20,437.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.64 : 32,932.80 = 13,628.32 : x
  2. Step 2: Convert to fraction form
    21,960.64/32,932.80 = 13,628.32/x
  3. Step 3: Cross multiply
    21,960.64x = 32,932.80 × 13,628.32
  4. Step 4: Simplify right side
    21,960.64x = 448,818,736.90
  5. Step 5: Solve for x
    x = 448,818,736.90/21,960.64
  6. Step 6: Final answer
    x = 20,437.42

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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.