Home / 19,321.32-28,981.99-10,551.44

Finding the Fourth Proportional to 19,321.32, 28,981.99 and 10,551.44

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Solution

The fourth proportional to 19,321.32, 28,981.99 and 10,551.44 is: 15,827.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.32 : 28,981.99 = 10,551.44 : x
  2. Step 2: Convert to fraction form
    19,321.32/28,981.99 = 10,551.44/x
  3. Step 3: Cross multiply
    19,321.32x = 28,981.99 × 10,551.44
  4. Step 4: Simplify right side
    19,321.32x = 305,801,728.57
  5. Step 5: Solve for x
    x = 305,801,728.57/19,321.32
  6. Step 6: Final answer
    x = 15,827.17

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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.