Home / 21,035.22-31,555.26-5,454.06

Finding the Fourth Proportional to 21,035.22, 31,555.26 and 5,454.06

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Solution

The fourth proportional to 21,035.22, 31,555.26 and 5,454.06 is: 8,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.22 : 31,555.26 = 5,454.06 : x
  2. Step 2: Convert to fraction form
    21,035.22/31,555.26 = 5,454.06/x
  3. Step 3: Cross multiply
    21,035.22x = 31,555.26 × 5,454.06
  4. Step 4: Simplify right side
    21,035.22x = 172,104,281.36
  5. Step 5: Solve for x
    x = 172,104,281.36/21,035.22
  6. Step 6: Final answer
    x = 8,181.72

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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.