Home / 19,127.90-28,667.54-10,812.58

Finding the Fourth Proportional to 19,127.90, 28,667.54 and 10,812.58

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Solution

The fourth proportional to 19,127.90, 28,667.54 and 10,812.58 is: 16,205.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.90 : 28,667.54 = 10,812.58 : x
  2. Step 2: Convert to fraction form
    19,127.90/28,667.54 = 10,812.58/x
  3. Step 3: Cross multiply
    19,127.90x = 28,667.54 × 10,812.58
  4. Step 4: Simplify right side
    19,127.90x = 309,970,025.02
  5. Step 5: Solve for x
    x = 309,970,025.02/19,127.90
  6. Step 6: Final answer
    x = 16,205.12

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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.