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Finding the Fourth Proportional to 25,788.60, 35,585.60 and 15,177.60

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Solution

The fourth proportional to 25,788.60, 35,585.60 and 15,177.60 is: 20,943.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,788.60 : 35,585.60 = 15,177.60 : x
  2. Step 2: Convert to fraction form
    25,788.60/35,585.60 = 15,177.60/x
  3. Step 3: Cross multiply
    25,788.60x = 35,585.60 × 15,177.60
  4. Step 4: Simplify right side
    25,788.60x = 540,103,926.67
  5. Step 5: Solve for x
    x = 540,103,926.67/25,788.60
  6. Step 6: Final answer
    x = 20,943.51

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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.