Home / 21,273.65-31,910.46-5,690.87

Finding the Fourth Proportional to 21,273.65, 31,910.46 and 5,690.87

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Solution

The fourth proportional to 21,273.65, 31,910.46 and 5,690.87 is: 8,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.65 : 31,910.46 = 5,690.87 : x
  2. Step 2: Convert to fraction form
    21,273.65/31,910.46 = 5,690.87/x
  3. Step 3: Cross multiply
    21,273.65x = 31,910.46 × 5,690.87
  4. Step 4: Simplify right side
    21,273.65x = 181,598,119.95
  5. Step 5: Solve for x
    x = 181,598,119.95/21,273.65
  6. Step 6: Final answer
    x = 8,536.30

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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.