Home / 19,320.94-28,981.41-10,551.07

Finding the Fourth Proportional to 19,320.94, 28,981.41 and 10,551.07

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Solution

The fourth proportional to 19,320.94, 28,981.41 and 10,551.07 is: 15,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.94 : 28,981.41 = 10,551.07 : x
  2. Step 2: Convert to fraction form
    19,320.94/28,981.41 = 10,551.07/x
  3. Step 3: Cross multiply
    19,320.94x = 28,981.41 × 10,551.07
  4. Step 4: Simplify right side
    19,320.94x = 305,784,885.61
  5. Step 5: Solve for x
    x = 305,784,885.61/19,320.94
  6. Step 6: Final answer
    x = 15,826.61

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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.