Home / 21,324.12-31,987.56-6,534.06

Finding the Fourth Proportional to 21,324.12, 31,987.56 and 6,534.06

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Solution

The fourth proportional to 21,324.12, 31,987.56 and 6,534.06 is: 9,801.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.12 : 31,987.56 = 6,534.06 : x
  2. Step 2: Convert to fraction form
    21,324.12/31,987.56 = 6,534.06/x
  3. Step 3: Cross multiply
    21,324.12x = 31,987.56 × 6,534.06
  4. Step 4: Simplify right side
    21,324.12x = 209,008,636.29
  5. Step 5: Solve for x
    x = 209,008,636.29/21,324.12
  6. Step 6: Final answer
    x = 9,801.51

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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.