Home / 20,724.04-31,086.06-5,141.67

Finding the Fourth Proportional to 20,724.04, 31,086.06 and 5,141.67

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Solution

The fourth proportional to 20,724.04, 31,086.06 and 5,141.67 is: 7,712.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.04 : 31,086.06 = 5,141.67 : x
  2. Step 2: Convert to fraction form
    20,724.04/31,086.06 = 5,141.67/x
  3. Step 3: Cross multiply
    20,724.04x = 31,086.06 × 5,141.67
  4. Step 4: Simplify right side
    20,724.04x = 159,834,262.12
  5. Step 5: Solve for x
    x = 159,834,262.12/20,724.04
  6. Step 6: Final answer
    x = 7,712.51

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Similar ratio
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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.