Home / 19,320.99-28,976.14-6,839.38

Finding the Fourth Proportional to 19,320.99, 28,976.14 and 6,839.38

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Solution

The fourth proportional to 19,320.99, 28,976.14 and 6,839.38 is: 10,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.99 : 28,976.14 = 6,839.38 : x
  2. Step 2: Convert to fraction form
    19,320.99/28,976.14 = 6,839.38/x
  3. Step 3: Cross multiply
    19,320.99x = 28,976.14 × 6,839.38
  4. Step 4: Simplify right side
    19,320.99x = 198,178,688.52
  5. Step 5: Solve for x
    x = 198,178,688.52/19,320.99
  6. Step 6: Final answer
    x = 10,257.17

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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.