Home / 20,269.60-30,407.44-7,119.64

Finding the Fourth Proportional to 20,269.60, 30,407.44 and 7,119.64

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Solution

The fourth proportional to 20,269.60, 30,407.44 and 7,119.64 is: 10,680.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.60 : 30,407.44 = 7,119.64 : x
  2. Step 2: Convert to fraction form
    20,269.60/30,407.44 = 7,119.64/x
  3. Step 3: Cross multiply
    20,269.60x = 30,407.44 × 7,119.64
  4. Step 4: Simplify right side
    20,269.60x = 216,490,026.12
  5. Step 5: Solve for x
    x = 216,490,026.12/20,269.60
  6. Step 6: Final answer
    x = 10,680.53

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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.