Home / 18,935.92-28,401.96-5,086.32

Finding the Fourth Proportional to 18,935.92, 28,401.96 and 5,086.32

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Solution

The fourth proportional to 18,935.92, 28,401.96 and 5,086.32 is: 7,628.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.92 : 28,401.96 = 5,086.32 : x
  2. Step 2: Convert to fraction form
    18,935.92/28,401.96 = 5,086.32/x
  3. Step 3: Cross multiply
    18,935.92x = 28,401.96 × 5,086.32
  4. Step 4: Simplify right side
    18,935.92x = 144,461,457.19
  5. Step 5: Solve for x
    x = 144,461,457.19/18,935.92
  6. Step 6: Final answer
    x = 7,628.96

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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.