Home / 20,199.07-30,298.15-5,408.00

Finding the Fourth Proportional to 20,199.07, 30,298.15 and 5,408.00

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Solution

The fourth proportional to 20,199.07, 30,298.15 and 5,408.00 is: 8,111.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.07 : 30,298.15 = 5,408.00 : x
  2. Step 2: Convert to fraction form
    20,199.07/30,298.15 = 5,408.00/x
  3. Step 3: Cross multiply
    20,199.07x = 30,298.15 × 5,408.00
  4. Step 4: Simplify right side
    20,199.07x = 163,852,364.09
  5. Step 5: Solve for x
    x = 163,852,364.09/20,199.07
  6. Step 6: Final answer
    x = 8,111.88

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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.