Home / 21,182.41-31,776.27-6,391.31

Finding the Fourth Proportional to 21,182.41, 31,776.27 and 6,391.31

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Solution

The fourth proportional to 21,182.41, 31,776.27 and 6,391.31 is: 9,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.41 : 31,776.27 = 6,391.31 : x
  2. Step 2: Convert to fraction form
    21,182.41/31,776.27 = 6,391.31/x
  3. Step 3: Cross multiply
    21,182.41x = 31,776.27 × 6,391.31
  4. Step 4: Simplify right side
    21,182.41x = 203,091,809.36
  5. Step 5: Solve for x
    x = 203,091,809.36/21,182.41
  6. Step 6: Final answer
    x = 9,587.76

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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.