Home / 38,690.60-53,404.20-25,078.18

Finding the Fourth Proportional to 38,690.60, 53,404.20 and 25,078.18

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Solution

The fourth proportional to 38,690.60, 53,404.20 and 25,078.18 is: 34,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,690.60 : 53,404.20 = 25,078.18 : x
  2. Step 2: Convert to fraction form
    38,690.60/53,404.20 = 25,078.18/x
  3. Step 3: Cross multiply
    38,690.60x = 53,404.20 × 25,078.18
  4. Step 4: Simplify right side
    38,690.60x = 1,339,280,140.36
  5. Step 5: Solve for x
    x = 1,339,280,140.36/38,690.60
  6. Step 6: Final answer
    x = 34,615.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.