Home / 21,208.06-31,799.02-7,166.76

Finding the Fourth Proportional to 21,208.06, 31,799.02 and 7,166.76

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Solution

The fourth proportional to 21,208.06, 31,799.02 and 7,166.76 is: 10,745.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208.06 : 31,799.02 = 7,166.76 : x
  2. Step 2: Convert to fraction form
    21,208.06/31,799.02 = 7,166.76/x
  3. Step 3: Cross multiply
    21,208.06x = 31,799.02 × 7,166.76
  4. Step 4: Simplify right side
    21,208.06x = 227,895,908.74
  5. Step 5: Solve for x
    x = 227,895,908.74/21,208.06
  6. Step 6: Final answer
    x = 10,745.72

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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.