Home / 19,528.40-29,292.60-18,837.20

Finding the Fourth Proportional to 19,528.40, 29,292.60 and 18,837.20

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Solution

The fourth proportional to 19,528.40, 29,292.60 and 18,837.20 is: 28,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,528.40 : 29,292.60 = 18,837.20 : x
  2. Step 2: Convert to fraction form
    19,528.40/29,292.60 = 18,837.20/x
  3. Step 3: Cross multiply
    19,528.40x = 29,292.60 × 18,837.20
  4. Step 4: Simplify right side
    19,528.40x = 551,790,564.72
  5. Step 5: Solve for x
    x = 551,790,564.72/19,528.40
  6. Step 6: Final answer
    x = 28,255.80

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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.