Home / 21,260.62-31,888.44-5,679.46

Finding the Fourth Proportional to 21,260.62, 31,888.44 and 5,679.46

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Solution

The fourth proportional to 21,260.62, 31,888.44 and 5,679.46 is: 8,518.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.62 : 31,888.44 = 5,679.46 : x
  2. Step 2: Convert to fraction form
    21,260.62/31,888.44 = 5,679.46/x
  3. Step 3: Cross multiply
    21,260.62x = 31,888.44 × 5,679.46
  4. Step 4: Simplify right side
    21,260.62x = 181,109,119.44
  5. Step 5: Solve for x
    x = 181,109,119.44/21,260.62
  6. Step 6: Final answer
    x = 8,518.52

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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.