Home / 21,331.26-31,998.60-5,748.66

Finding the Fourth Proportional to 21,331.26, 31,998.60 and 5,748.66

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Solution

The fourth proportional to 21,331.26, 31,998.60 and 5,748.66 is: 8,623.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.26 : 31,998.60 = 5,748.66 : x
  2. Step 2: Convert to fraction form
    21,331.26/31,998.60 = 5,748.66/x
  3. Step 3: Cross multiply
    21,331.26x = 31,998.60 × 5,748.66
  4. Step 4: Simplify right side
    21,331.26x = 183,949,071.88
  5. Step 5: Solve for x
    x = 183,949,071.88/21,331.26
  6. Step 6: Final answer
    x = 8,623.45

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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.