Home / 19,320.35-28,960.91-10,983.13

Finding the Fourth Proportional to 19,320.35, 28,960.91 and 10,983.13

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Solution

The fourth proportional to 19,320.35, 28,960.91 and 10,983.13 is: 16,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.35 : 28,960.91 = 10,983.13 : x
  2. Step 2: Convert to fraction form
    19,320.35/28,960.91 = 10,983.13/x
  3. Step 3: Cross multiply
    19,320.35x = 28,960.91 × 10,983.13
  4. Step 4: Simplify right side
    19,320.35x = 318,081,511.85
  5. Step 5: Solve for x
    x = 318,081,511.85/19,320.35
  6. Step 6: Final answer
    x = 16,463.55

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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.