Home / 20,659.34-30,991.06-6,615.84

Finding the Fourth Proportional to 20,659.34, 30,991.06 and 6,615.84

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Solution

The fourth proportional to 20,659.34, 30,991.06 and 6,615.84 is: 9,924.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.34 : 30,991.06 = 6,615.84 : x
  2. Step 2: Convert to fraction form
    20,659.34/30,991.06 = 6,615.84/x
  3. Step 3: Cross multiply
    20,659.34x = 30,991.06 × 6,615.84
  4. Step 4: Simplify right side
    20,659.34x = 205,031,894.39
  5. Step 5: Solve for x
    x = 205,031,894.39/20,659.34
  6. Step 6: Final answer
    x = 9,924.42

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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.