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Finding the Fourth Proportional to 30,555.60, 45,768.60 and 25,371.60

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Solution

The fourth proportional to 30,555.60, 45,768.60 and 25,371.60 is: 38,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,555.60 : 45,768.60 = 25,371.60 : x
  2. Step 2: Convert to fraction form
    30,555.60/45,768.60 = 25,371.60/x
  3. Step 3: Cross multiply
    30,555.60x = 45,768.60 × 25,371.60
  4. Step 4: Simplify right side
    30,555.60x = 1,161,222,611.76
  5. Step 5: Solve for x
    x = 1,161,222,611.76/30,555.60
  6. Step 6: Final answer
    x = 38,003.59

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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.