Home / 19,006.72-28,639.84-15,619.84

Finding the Fourth Proportional to 19,006.72, 28,639.84 and 15,619.84

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Solution

The fourth proportional to 19,006.72, 28,639.84 and 15,619.84 is: 23,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,006.72 : 28,639.84 = 15,619.84 : x
  2. Step 2: Convert to fraction form
    19,006.72/28,639.84 = 15,619.84/x
  3. Step 3: Cross multiply
    19,006.72x = 28,639.84 × 15,619.84
  4. Step 4: Simplify right side
    19,006.72x = 447,349,718.43
  5. Step 5: Solve for x
    x = 447,349,718.43/19,006.72
  6. Step 6: Final answer
    x = 23,536.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.