Home / 25,631.60-35,319.12-18,906.58

Finding the Fourth Proportional to 25,631.60, 35,319.12 and 18,906.58

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Solution

The fourth proportional to 25,631.60, 35,319.12 and 18,906.58 is: 26,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.60 : 35,319.12 = 18,906.58 : x
  2. Step 2: Convert to fraction form
    25,631.60/35,319.12 = 18,906.58/x
  3. Step 3: Cross multiply
    25,631.60x = 35,319.12 × 18,906.58
  4. Step 4: Simplify right side
    25,631.60x = 667,763,767.81
  5. Step 5: Solve for x
    x = 667,763,767.81/25,631.60
  6. Step 6: Final answer
    x = 26,052.36

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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.