Home / 21,098.01-31,619.07-11,216.01

Finding the Fourth Proportional to 21,098.01, 31,619.07 and 11,216.01

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Solution

The fourth proportional to 21,098.01, 31,619.07 and 11,216.01 is: 16,809.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.01 : 31,619.07 = 11,216.01 : x
  2. Step 2: Convert to fraction form
    21,098.01/31,619.07 = 11,216.01/x
  3. Step 3: Cross multiply
    21,098.01x = 31,619.07 × 11,216.01
  4. Step 4: Simplify right side
    21,098.01x = 354,639,805.31
  5. Step 5: Solve for x
    x = 354,639,805.31/21,098.01
  6. Step 6: Final answer
    x = 16,809.16

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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.