Home / 21,260.59-31,893.05-5,679.31

Finding the Fourth Proportional to 21,260.59, 31,893.05 and 5,679.31

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Solution

The fourth proportional to 21,260.59, 31,893.05 and 5,679.31 is: 8,519.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.59 : 31,893.05 = 5,679.31 : x
  2. Step 2: Convert to fraction form
    21,260.59/31,893.05 = 5,679.31/x
  3. Step 3: Cross multiply
    21,260.59x = 31,893.05 × 5,679.31
  4. Step 4: Simplify right side
    21,260.59x = 181,130,517.80
  5. Step 5: Solve for x
    x = 181,130,517.80/21,260.59
  6. Step 6: Final answer
    x = 8,519.54

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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.