Home / 25,600.60-38,336.10-20,416.60

Finding the Fourth Proportional to 25,600.60, 38,336.10 and 20,416.60

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Solution

The fourth proportional to 25,600.60, 38,336.10 and 20,416.60 is: 30,573.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,600.60 : 38,336.10 = 20,416.60 : x
  2. Step 2: Convert to fraction form
    25,600.60/38,336.10 = 20,416.60/x
  3. Step 3: Cross multiply
    25,600.60x = 38,336.10 × 20,416.60
  4. Step 4: Simplify right side
    25,600.60x = 782,692,819.26
  5. Step 5: Solve for x
    x = 782,692,819.26/25,600.60
  6. Step 6: Final answer
    x = 30,573.22

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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.