Home / 19,019.64-28,328.88-18,166.80

Finding the Fourth Proportional to 19,019.64, 28,328.88 and 18,166.80

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Solution

The fourth proportional to 19,019.64, 28,328.88 and 18,166.80 is: 27,058.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.64 : 28,328.88 = 18,166.80 : x
  2. Step 2: Convert to fraction form
    19,019.64/28,328.88 = 18,166.80/x
  3. Step 3: Cross multiply
    19,019.64x = 28,328.88 × 18,166.80
  4. Step 4: Simplify right side
    19,019.64x = 514,645,097.18
  5. Step 5: Solve for x
    x = 514,645,097.18/19,019.64
  6. Step 6: Final answer
    x = 27,058.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.