Home / 21,310.08-31,968.16-10,222.32

Finding the Fourth Proportional to 21,310.08, 31,968.16 and 10,222.32

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Solution

The fourth proportional to 21,310.08, 31,968.16 and 10,222.32 is: 15,334.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,310.08 : 31,968.16 = 10,222.32 : x
  2. Step 2: Convert to fraction form
    21,310.08/31,968.16 = 10,222.32/x
  3. Step 3: Cross multiply
    21,310.08x = 31,968.16 × 10,222.32
  4. Step 4: Simplify right side
    21,310.08x = 326,788,761.33
  5. Step 5: Solve for x
    x = 326,788,761.33/21,310.08
  6. Step 6: Final answer
    x = 15,334.94

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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.