Home / 20,659.84-30,991.81-6,616.34

Finding the Fourth Proportional to 20,659.84, 30,991.81 and 6,616.34

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Solution

The fourth proportional to 20,659.84, 30,991.81 and 6,616.34 is: 9,925.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.84 : 30,991.81 = 6,616.34 : x
  2. Step 2: Convert to fraction form
    20,659.84/30,991.81 = 6,616.34/x
  3. Step 3: Cross multiply
    20,659.84x = 30,991.81 × 6,616.34
  4. Step 4: Simplify right side
    20,659.84x = 205,052,352.18
  5. Step 5: Solve for x
    x = 205,052,352.18/20,659.84
  6. Step 6: Final answer
    x = 9,925.17

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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.