Home / 20,886.10-31,324.26-9,782.22

Finding the Fourth Proportional to 20,886.10, 31,324.26 and 9,782.22

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Solution

The fourth proportional to 20,886.10, 31,324.26 and 9,782.22 is: 14,671.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.10 : 31,324.26 = 9,782.22 : x
  2. Step 2: Convert to fraction form
    20,886.10/31,324.26 = 9,782.22/x
  3. Step 3: Cross multiply
    20,886.10x = 31,324.26 × 9,782.22
  4. Step 4: Simplify right side
    20,886.10x = 306,420,802.66
  5. Step 5: Solve for x
    x = 306,420,802.66/20,886.10
  6. Step 6: Final answer
    x = 14,671.04

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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.