Home / 21,593.36-32,316.88-13,278.64

Finding the Fourth Proportional to 21,593.36, 32,316.88 and 13,278.64

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Solution

The fourth proportional to 21,593.36, 32,316.88 and 13,278.64 is: 19,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,593.36 : 32,316.88 = 13,278.64 : x
  2. Step 2: Convert to fraction form
    21,593.36/32,316.88 = 13,278.64/x
  3. Step 3: Cross multiply
    21,593.36x = 32,316.88 × 13,278.64
  4. Step 4: Simplify right side
    21,593.36x = 429,124,215.44
  5. Step 5: Solve for x
    x = 429,124,215.44/21,593.36
  6. Step 6: Final answer
    x = 19,872.97

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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.