Home / 20,023.32-30,009.30-8,322.60

Finding the Fourth Proportional to 20,023.32, 30,009.30 and 8,322.60

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Solution

The fourth proportional to 20,023.32, 30,009.30 and 8,322.60 is: 12,473.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.32 : 30,009.30 = 8,322.60 : x
  2. Step 2: Convert to fraction form
    20,023.32/30,009.30 = 8,322.60/x
  3. Step 3: Cross multiply
    20,023.32x = 30,009.30 × 8,322.60
  4. Step 4: Simplify right side
    20,023.32x = 249,755,400.18
  5. Step 5: Solve for x
    x = 249,755,400.18/20,023.32
  6. Step 6: Final answer
    x = 12,473.23

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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.