Home / 19,321.07-28,981.60-10,551.20

Finding the Fourth Proportional to 19,321.07, 28,981.60 and 10,551.20

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Solution

The fourth proportional to 19,321.07, 28,981.60 and 10,551.20 is: 15,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.07 : 28,981.60 = 10,551.20 : x
  2. Step 2: Convert to fraction form
    19,321.07/28,981.60 = 10,551.20/x
  3. Step 3: Cross multiply
    19,321.07x = 28,981.60 × 10,551.20
  4. Step 4: Simplify right side
    19,321.07x = 305,790,486.63
  5. Step 5: Solve for x
    x = 305,790,486.63/19,321.07
  6. Step 6: Final answer
    x = 15,826.79

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Similar ratio
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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.