Home / 21,282.12-31,924.56-6,492.12

Finding the Fourth Proportional to 21,282.12, 31,924.56 and 6,492.12

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Solution

The fourth proportional to 21,282.12, 31,924.56 and 6,492.12 is: 9,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.12 : 31,924.56 = 6,492.12 : x
  2. Step 2: Convert to fraction form
    21,282.12/31,924.56 = 6,492.12/x
  3. Step 3: Cross multiply
    21,282.12x = 31,924.56 × 6,492.12
  4. Step 4: Simplify right side
    21,282.12x = 207,258,074.47
  5. Step 5: Solve for x
    x = 207,258,074.47/21,282.12
  6. Step 6: Final answer
    x = 9,738.60

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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.