Home / 21,364.36-29,482.88-11,933.28

Finding the Fourth Proportional to 21,364.36, 29,482.88 and 11,933.28

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Solution

The fourth proportional to 21,364.36, 29,482.88 and 11,933.28 is: 16,467.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.36 : 29,482.88 = 11,933.28 : x
  2. Step 2: Convert to fraction form
    21,364.36/29,482.88 = 11,933.28/x
  3. Step 3: Cross multiply
    21,364.36x = 29,482.88 × 11,933.28
  4. Step 4: Simplify right side
    21,364.36x = 351,827,462.25
  5. Step 5: Solve for x
    x = 351,827,462.25/21,364.36
  6. Step 6: Final answer
    x = 16,467.96

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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.