Home / 20,733.60-31,100.40-13,735.20

Finding the Fourth Proportional to 20,733.60, 31,100.40 and 13,735.20

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Solution

The fourth proportional to 20,733.60, 31,100.40 and 13,735.20 is: 20,602.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.60 : 31,100.40 = 13,735.20 : x
  2. Step 2: Convert to fraction form
    20,733.60/31,100.40 = 13,735.20/x
  3. Step 3: Cross multiply
    20,733.60x = 31,100.40 × 13,735.20
  4. Step 4: Simplify right side
    20,733.60x = 427,170,214.08
  5. Step 5: Solve for x
    x = 427,170,214.08/20,733.60
  6. Step 6: Final answer
    x = 20,602.80

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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.