Home / 30,611.60-42,244.68-18,673.52

Finding the Fourth Proportional to 30,611.60, 42,244.68 and 18,673.52

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Solution

The fourth proportional to 30,611.60, 42,244.68 and 18,673.52 is: 25,769.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.60 : 42,244.68 = 18,673.52 : x
  2. Step 2: Convert to fraction form
    30,611.60/42,244.68 = 18,673.52/x
  3. Step 3: Cross multiply
    30,611.60x = 42,244.68 × 18,673.52
  4. Step 4: Simplify right side
    30,611.60x = 788,856,876.87
  5. Step 5: Solve for x
    x = 788,856,876.87/30,611.60
  6. Step 6: Final answer
    x = 25,769.87

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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.