Home / 21,107.22-31,650.30-7,062.36

Finding the Fourth Proportional to 21,107.22, 31,650.30 and 7,062.36

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Solution

The fourth proportional to 21,107.22, 31,650.30 and 7,062.36 is: 10,590.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107.22 : 31,650.30 = 7,062.36 : x
  2. Step 2: Convert to fraction form
    21,107.22/31,650.30 = 7,062.36/x
  3. Step 3: Cross multiply
    21,107.22x = 31,650.30 × 7,062.36
  4. Step 4: Simplify right side
    21,107.22x = 223,525,812.71
  5. Step 5: Solve for x
    x = 223,525,812.71/21,107.22
  6. Step 6: Final answer
    x = 10,590.02

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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.