Home / 21,016.74-31,525.77-7,866.60

Finding the Fourth Proportional to 21,016.74, 31,525.77 and 7,866.60

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Solution

The fourth proportional to 21,016.74, 31,525.77 and 7,866.60 is: 11,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.74 : 31,525.77 = 7,866.60 : x
  2. Step 2: Convert to fraction form
    21,016.74/31,525.77 = 7,866.60/x
  3. Step 3: Cross multiply
    21,016.74x = 31,525.77 × 7,866.60
  4. Step 4: Simplify right side
    21,016.74x = 248,000,622.28
  5. Step 5: Solve for x
    x = 248,000,622.28/21,016.74
  6. Step 6: Final answer
    x = 11,800.15

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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.