Home / 19,088.66-28,639.81-11,607.44

Finding the Fourth Proportional to 19,088.66, 28,639.81 and 11,607.44

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Solution

The fourth proportional to 19,088.66, 28,639.81 and 11,607.44 is: 17,415.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088.66 : 28,639.81 = 11,607.44 : x
  2. Step 2: Convert to fraction form
    19,088.66/28,639.81 = 11,607.44/x
  3. Step 3: Cross multiply
    19,088.66x = 28,639.81 × 11,607.44
  4. Step 4: Simplify right side
    19,088.66x = 332,434,876.19
  5. Step 5: Solve for x
    x = 332,434,876.19/19,088.66
  6. Step 6: Final answer
    x = 17,415.31

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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.