Home / 19,942.67-27,521.07-10,990.50

Finding the Fourth Proportional to 19,942.67, 27,521.07 and 10,990.50

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Solution

The fourth proportional to 19,942.67, 27,521.07 and 10,990.50 is: 15,166.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.67 : 27,521.07 = 10,990.50 : x
  2. Step 2: Convert to fraction form
    19,942.67/27,521.07 = 10,990.50/x
  3. Step 3: Cross multiply
    19,942.67x = 27,521.07 × 10,990.50
  4. Step 4: Simplify right side
    19,942.67x = 302,470,319.84
  5. Step 5: Solve for x
    x = 302,470,319.84/19,942.67
  6. Step 6: Final answer
    x = 15,166.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.