Home / 19,354.87-28,871.57-18,706.99

Finding the Fourth Proportional to 19,354.87, 28,871.57 and 18,706.99

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Solution

The fourth proportional to 19,354.87, 28,871.57 and 18,706.99 is: 27,905.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,354.87 : 28,871.57 = 18,706.99 : x
  2. Step 2: Convert to fraction form
    19,354.87/28,871.57 = 18,706.99/x
  3. Step 3: Cross multiply
    19,354.87x = 28,871.57 × 18,706.99
  4. Step 4: Simplify right side
    19,354.87x = 540,100,171.27
  5. Step 5: Solve for x
    x = 540,100,171.27/19,354.87
  6. Step 6: Final answer
    x = 27,905.13

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Double scale
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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.