Home / 21,315.22-31,992.54-10,792.70

Finding the Fourth Proportional to 21,315.22, 31,992.54 and 10,792.70

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Solution

The fourth proportional to 21,315.22, 31,992.54 and 10,792.70 is: 16,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315.22 : 31,992.54 = 10,792.70 : x
  2. Step 2: Convert to fraction form
    21,315.22/31,992.54 = 10,792.70/x
  3. Step 3: Cross multiply
    21,315.22x = 31,992.54 × 10,792.70
  4. Step 4: Simplify right side
    21,315.22x = 345,285,886.46
  5. Step 5: Solve for x
    x = 345,285,886.46/21,315.22
  6. Step 6: Final answer
    x = 16,199.03

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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.