Home / 21,060.06-31,590.15-5,477.68

Finding the Fourth Proportional to 21,060.06, 31,590.15 and 5,477.68

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Solution

The fourth proportional to 21,060.06, 31,590.15 and 5,477.68 is: 8,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.06 : 31,590.15 = 5,477.68 : x
  2. Step 2: Convert to fraction form
    21,060.06/31,590.15 = 5,477.68/x
  3. Step 3: Cross multiply
    21,060.06x = 31,590.15 × 5,477.68
  4. Step 4: Simplify right side
    21,060.06x = 173,040,732.85
  5. Step 5: Solve for x
    x = 173,040,732.85/21,060.06
  6. Step 6: Final answer
    x = 8,216.54

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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.