Home / 21,799.06-30,086.14-13,303.02

Finding the Fourth Proportional to 21,799.06, 30,086.14 and 13,303.02

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Solution

The fourth proportional to 21,799.06, 30,086.14 and 13,303.02 is: 18,360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.06 : 30,086.14 = 13,303.02 : x
  2. Step 2: Convert to fraction form
    21,799.06/30,086.14 = 13,303.02/x
  3. Step 3: Cross multiply
    21,799.06x = 30,086.14 × 13,303.02
  4. Step 4: Simplify right side
    21,799.06x = 400,236,522.14
  5. Step 5: Solve for x
    x = 400,236,522.14/21,799.06
  6. Step 6: Final answer
    x = 18,360.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.